Stirring is only required to dissolve sucrose sugar in water.
What is solubility?
Solubility in chemistry refers to a chemical's capacity to dissolve in another substance, the solvent, to produce a solution. The opposite characteristic, insolubility, refers to the solute's incapacity to create a solution. The solvent is often a solid or a liquid, whereas the solute may be a solid, liquid, or gas. Both could be solution-based compounds or pure chemicals. Except in extremely rare circumstances, gases are always miscible in all ratios, and the only way a solid or liquid may be "dissolved" in a gas is by first becoming gaseous.
Temperature, pressure, and the makeup of the solute and solvent (including their pH and the presence of additional dissolved materials) are the key determinants of solubility.
Sugar dissolves in water because energy is given off when the slightly polar sucrose molecules form intermolecular bonds with the polar water molecules. The weak bonds that form between the solute and the solvent compensate for the energy needed to disrupt the structure of both the pure solute and the solvent.Hence, stirring is only required to dissolve sucrose sugar in water.
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How would you predict that doubling the atmospheric co2 concentration would affect c3 plants?.
Doubling the atmospheric CO₂ concentration then C₃ plants has faster growth rate
CO₂ level are usually measured in percent of air or part per million and because of CO₂ the plants can maintain high photosynthetic rates with relatively low stomatal conductance and it has been suggested that increase CO₂ will increase water use efficiency of C₃ species because it caused a reduction in transpiration rate and an increases in CO₂ assimilation rate of the plant and C₃ would have faster growth rate and C₄ would be minimally affected
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Which of the follow will eventually lead to cooler global temperatures on earth?.
Warmer temperatures will more water evaporate and will lead to more clouds. These clouds will shade the earth the sun, leading to cooler temperatures.
Explain the term water evaporation.
A type of vaporization called evaporation takes place on the surface of a liquid as it transitions into the gas phase. When humidity impacts the rate of evaporation of water, for example, a high concentration of the evaporating component in the surrounding gas considerably slows down evaporation. Depending on how they collide, the liquid's molecules transfer energy to one another during collisions. A molecule at the surface will escape and turn into a gas when it has enough energy to outpace the vapour pressure. Evaporation results in cooling because the energy from the evaporated liquid is lost, which lowers the liquid's temperature.
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What is determined by the distance at which the lowest potential energy is achieved and the distance at which positive charges have the least repulsion?.
As the atoms approach one another, the positive charges in the two nuclei begin to reject one another, increasing the potential energy. The bond length is determined by the distance at which the lowest potential energy is reached.
The bond length is determined by the internuclear distance at which the potential energy minimum occurs. The equilibrium bond length, which captures the distance at which the two atoms bounce due to thermal motion, is a better phrase. In general, shorter bonds result in stronger bonds.
The bulk of atoms obtain a lower potential energy when they are bonded to other atoms. The potential energy of the system is said to be zero at this distance.
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we use differences in electronegativity to account for certain properties of bonds. what if all atoms had the same electronega- tivity values? how would bonding between atoms be affected? what are some differences we would notice?
If all atoms had the same electronegativity values. Th electrons are equally shared between the two atom. they combine and form covalent bond.
If the electronegativity of atom are different the electrons are unequally shared. the more electronegative atom attract the electron pair through ionic bond . they form ionic compound . if the electronegativity of atoms are same than the electron equally share between the atom through the covalent bond . the compound are called as covalent compound.
Thus, If all atoms had the same electronegativity values. Th electrons are equally shared between the two atom. they combine and form covalent bond.
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Considering what was discovered about the atom, describe one possible model that could be concluded from Rutherford’s data.
From the Rutherford results of the atom, we can say that it would fit a planetary model of the atom.
What is the Rutherford model?We know that that atom is the smallest particle of a substance that can take part in a chemical reaction. There were various models of the atom that could be explained based on the empirical results that were obtained by the experiments of a lot of scientists.
In the case of the Rutherford model of the atom, we know that experiment had to do with the bombardment of the thin gold foil with alpha particles and some of the alpha particles were scattered at large distances.
A zinc sulfide screen was used to identify the positions of the alpha particles that were scatted in the course of the experiment as shown.
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HELP PLS
I NEED THE BOTTOM TO BE a matched up by the top PLS ASSAPPp
Answer:
a: milliliters and grams | b: heat | c: force | d: solid | e: attraction
Explanation:
A: milliliters are cubic and grams are weight.
b: heat make particles go faster
c: thus more collisions and temperature and force
d: solid, they can't move, just vibrate
e: attraction
What happens to a molecule with a bond dipole when the electric field is turned on.
When the electric field is turned on, the dipole moment ends up aligned parallel to the external electric field.
In electromagnetism, dipoles come in two different varieties. In electromagnetic systems, the separation of positive and negative charges is handled by the electric dipole. A pair of charges of equal magnitude and opposing sign that are typically close together is a straightforward illustration of this system. (An electret is a permanent electric dipole.)
In the current system, a magnetic dipole is a closed circuit. A single wire loop with a constant current is a straightforward illustration. The vector quantity dipole moment can be used to describe an electric or magnetic dipole. The electric dipole moment, which in a basic electric dipole points from a negative charge to a positive charge, has a magnitude equal to the sum of the electric charge intensities times the separation between the charges.
When defining the dipole moment, the "dipole limit" should always be taken into account. For instance, in order to maintain the product, the generated charge spacing should converge toward 0 while the charge strength should diverge toward infinity. (Continuous positive)
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Which scientist first proposed that the electron in the hydrogen atom can have only certain energies?.
The idea that an electron in a hydrogen atom can only have specific energies was first put out by Niels Bohr.
Niels Bohr was renowned for what?The Nobel Prize for 1922 was given in recognition of his study on the atomic structure. Since 1930, more and more of Bohr's activities at his Institute have been focused on studying the atomic nuclei's composition as well as their transmutations and disintegrations.
In his model of the atom, Niels Bohr used electrons that could only have exact solid orbits. The quantum concept was initially included into this atomic model. Due to the fact that hydrogen emits and absorbs light at particular wavelengths, that electron may wish to best arise in particular orbits.
Based on the notion that some physical quantities can only assume discrete values in the quantum world, Niels Bohr developed a principle for the hydrogen atom. In his desk-bound state theory, Bohr postulated that electrons no longer radiate energy as they orbit the nucleus but rather reside in states of constant energy. Bohr's artwork was entirely modified in response to the emission spectra of hydrogen.
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How many grams of aluminum oxide are produced in the reaction?
64.6 g of Al2O3 are created from 30.4 g of O2. The highest quantity of aluminium oxide that may be generated in this reaction is 57.4 g, with aluminium acting as the limiting reagent.
What happens when oxygen and al react?Aluminum oxide is created when aluminium and oxygen react.
Sodium aluminate and water are created when aluminium oxide interacts with sodium hydroxide. The temperature where this reaction occurs is between 900 and 1100 °C. In this reaction, aluminium oxide functions as an acid to produce salt and water.
One mole of oxygen gas is equivalent to one gramme of molecules. As a result, one mole of O2 gas is equal to one gramme of oxygen molecules.
This is a synthesis reaction because Al and O2 are the two reactants here, and they combine to produce Al2O3.
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Answer:
119.6 g
Explanation:
I got it wrong so future generations may not.
What describes an oxidizing agent?.
Consequently, an oxidizing agent is an electron acceptor. A species that can transfer electronegative atoms, particularly oxygen, to a substrate may also be thought of as an oxidizing agent.
Oxidizing substances are also referred to as oxidizers. Oxidizing agent illustrations An oxidizing agent is a material in a redox chemical process that obtains or "accepts"/"receives" an electron from a reducing agent (also known as an oxidant, oxidizer, electron recipient, or electron acceptor) (called the reductant, reducer, or electron donor). The electron is a subatomic particle with the symbol e or with an electric charge of one elementaryly negative charge. Due to their lack of known components or substructure, electrons, which are part of the first generation of the lepton particle family, are typically considered to be elementary particles.
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the basic food colors you can buy are red, blue, green, and yellow. think about what you know about colors and predict which of these might be a single colored compound and which ones might contain more than one. write down your prediction. if you have the colors listed and want a purple color, what would you do?
The secondary color green may be composed of more than one color while red, blue and yellow are single colors. If you take red and blue and mix those together, the color purple will be formed.
Though, the shade of purple will depend on the ratio and type of red and blue shade. Since purple is a secondary color. The 2 colors that make purple are primary in nature.
Primary colors (or primary colours) are sets of colors that can be combined to make a useful range of colors. The primary colors are those which cannot be created by mixing other colors in a given color space.
A secondary color is a color made by mixing of two primary colors in a given color space.
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If you need more information about your cloth pieces, which electromagnetic technology could you use
and why? Does the technology you selected use infrared, ultraviolet, or visible light?¶
Fluorescence is a term for the visible light that some dyes emit when exposed to UV radiation. UV rays are present in many papers and fabrics.
What modern devices make use of electromagnetic radiation?There are many practical, everyday uses for electromagnetic waves, including mobile phone and radio broadcasting communication, WiFi, cooking, eyesight, medical imaging, and cancer treatment.
If we could see ultraviolet light, what would we see?If you could see ultraviolet light, it would make the world even more blue since it scatters even more than regular blue light does. For it to It would appear as though the atmosphere suddenly become foggy and dense, with a blue haze hanging over everything. Every time you turned to look into the distance, it was always dimly illuminated.
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Calculations for Part B:
You will need to determine the identity of an unknown compound using only the knowledge that
you have 0.05 moles of it. There are three different possible identities for the compound:
● Bismuth Carbonate
Potassium Silicate
● Magnesium Sulfate
Using the common ions list, find the chemical formula of Bismuth Carbonate:
Find the molar mass of Bismuth Carbonate. Show Your Work.
If you had a sample of 0.05 moles of Bismuth Carbonate, what should the sample mass be, in
grams?
The chemical formula of Bismuth Carbonate is (BiO)2CO3 and the molar mass of Bismuth carbonate is 510 g/mol.
How to calculate molar mass of Bismuth carbonate?
Molar mass of (BiO)2CO3 = (atomic mass of Bi x number of Bi atoms) + (atomic mass of O x number of O atoms) + (atomic mass of C x number of C atoms)
molar mass = (209x2) + (16x5) + (12x1) = 510 g/mol.
How to calculate mass of (BiO)2CO3 in grams?
Mass in grams = number of moles x molar mass = 0.05 x 510 = 25.5g.
Therefore, the chemical formula of bismuth carbonate is (BiO)2CO3, it's molar mass is 510g/mol and it's mass in 0.05 moles is 25.5g.
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I need help with this one
Option B. Element in area 4 is less lustrous than the element in area 3.
The periodic table additionally referred to as the periodic table of elements, is a tabular display of chemical factors. it's far widely used in chemistry, physics, and other sciences, and is usually visible as an icon of chemistry.
The periodic table (also known as the periodic desk of factors) is organized so scientists can fast parent the houses of character elements along with their mass, electron range, electron configuration, and their particular chemical properties. Ununennium, additionally known as eka-francium or detail 119, is the hypothetical chemical detail with image Use and atomic variety 119.
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the free energy for the oxidation of glucose to co2 and water is -686 kcal/mol and the free energy for the reduction of nad to nadh is 53 kcal/mol. why are only two molecules of nadh formed during glycolysis when it appears that as many as a dozen could be formed? the free energy for the oxidation of glucose to co2 and water is -686 kcal/mol and the free energy for the reduction of nad to nadh is 53 kcal/mol. why are only two molecules of nadh formed during glycolysis when it appears that as many as a dozen could be formed? there is no co2 or water produced as products of glycolysis. most of the free energy available from the oxidation of glucose is used in the production of atp in glycolysis. glycolysis is a very inefficient reaction, with much of the energy of glucose released as heat. most of the free energy available from the oxidation of glucose remains in pyruvate, one of the products of glycolysis.
There are only two molecules of NADH formed during glycolysis Since most of the free energy generated during glucose oxidation remains in pyruvate, only two NADH molecules are formed.
The overall reaction process of glycolysis is:
Glucose + 2 NAD+ + 2 ADP + 2 Pi ⇒ 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP
From the above glycolytic process, oxidation of glucose produces 2 NADH and 2 molecules of ATP. increase. Since most of the energy stays in 2 molecules of pyruvate, only 2 molecules of NADH are formed during the entire process of glycolysis. The free energy generated during oxidation of glucose remains in pyruvate.
Most of the free energy available from the oxidation of glucose remains in pyruvate, one of the products of glycolysis. Glycolysis refers to the breakdown of the glucose molecules during the complex process of cellular respiration. The process takes place in ten enzymes catalyzed reactions that form the 2 molecules of pyruvate.
The glycolysis process releases a lot of energy which is measured as -686 kcal/mol. The energy is not released into the reaction directly but is conserved in pyruvate form and less is released into driving the reduction of NAD to NADH.
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the bond formed between the carboxylic acid group of one amino acid and the amino group of the next amino acid is a(n) bond.
Peptide bonds are amide connections between two amino acids' -carboxyl and -amino groups.
The covalent link created by the dehydration reaction (loss of a water molecule) between the carboxyl group of one amino acid and the amino group on the next is known as a peptide bond. Peptide bonds are created in polypeptides through a condensation reaction between the carboxyl groups of one amino acid and the amino groups of the following amino acid, all while removing water. When the carboxyl group of one molecule combines with the amino group of the other molecule, releasing a molecule of H2O as a result, a peptide bond is created between the two molecules.
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what property is different between the atomic orbitals in a 3p subshell? group of answer choices shape size orientation in space
The size, energy, and number of nodes of the 2p and 3p orbitals are different from one another. In an atomic orbital, a nodal surface is one where there is no chance of encountering an electron.
The 3d orbital in a multi-electron atom has a higher energy than the 3p orbital. 8 A 3p orbital has a radial node, while a 3d orbital has two. A 3p orbital can hold six electrons, but a 3d orbital can hold ten. Greater than 3p orbitals are 3d orbitals. The highest level of probability for an electron to occur is in an atomic orbital. The route that electrons travel while navigating the restrictions of the shell is referred to as a subshell.
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How does the volume of a real gas compare to the volume of an ideal gas at high pressure?.
According to the Kinetic theory of gases, the volume of ideal gases is negligible compared to the volume of the container. Whereas, the volume of real gases cannot be neglected.
What is kinetic theory of gases?According to the Kinetic theory of gases, matter is made of tiny particles. These particles are not exerting any intermolecular force of attraction or repulsion.
The gaseous particles exerts a pressure by collision to other particle and with the wall of the container. At high pressure, as per Boyle's law for ideal gases, the volume of the gases decreases.
However, Boyle's law cannot be applicable to real gases at all temperature. As the temperature increases, the volume also increases. Moreover, when the volume of particles is reduced, they haven't enough space to move.
Therefore, at lower volume, particles definitely experience an intermolecular force of attraction or repulsion. But this is not considered in the ideal gas theory.
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After the amino acid chain leaves the ribosome, which organelle then folds, modifies, and transports the protein?.
Answer: endoplasmisc reticulum
Explanation:
Convert the cientific notation to decimal number. Type the correct anwer to the box. 4 x10-power over 5 cm =cm
The Scientific notation to decimal number , 4 × 10⁻⁵ cm = 0.00004 cm
given data as follows :
scientific notation number = 4 × 10⁻⁵ cm
to convert it in decimal for as :
4 × 10⁻⁵ cm = 4 × 1 / 10⁵ cm
4 × 10⁻⁵ cm = 4 × 1 / 100000 cm
4 × 10⁻⁵ cm = 4 × 0.00001 cm
4 × 10⁻⁵ cm = 0.00004 cm
so, the conversion of scientific notation to decimal form is given as : 4 × 10⁻⁵ cm = 0.00004 cm. scientific notation is the way of expressing long form to short form and decimal is long form.
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which option is an insoluble substance? responses the substance takes a long time to dissolve in the solvent. the substance takes a long time to dissolve in the solvent. all of the substance will dissolve in the solvent. all of the substance will dissolve in the sol, vent. about 100 g of the substance will dissolve in 100 ml of solvent. about 100 g of the substance will dissolve in 100 ml of solvent. little or none of the substance will dissolve in the solvent.
The option for insoluble substances is : little or none of the substance will dissolve in the solvent.
The insoluble substance is a substance which do not dissolve in the solvent. The insoluble substance will settle down and float in water. the substance which dissolve in the water is called as soluble substance. some examples are : sand in water , oil in water , chalk powder in water , soil in water, plastic in water. these are insoluble in water even after if we will try to mix it.
Thus, The option for insoluble substances is : little or none of the substance will dissolve in the solvent.
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In order to calculate the net torque for an object in static equilibrium, the pivot point __________.
A static equilibrium requires that both net forces and net torques be absent from an object. The pivot point for calculating the torque can be set at any convenient place because the net torque is zero about any point.
How is torque determined for static equilibrium?The magnitude of the torque caused by each force is calculated by multiplying the moment arm by the respective force's magnitude. When adding the torques and putting that sum equal to zero for the equilibrium torque condition, distinguish whether each torque is clockwise or counterclockwise and assign each the correct sign.
How is net torque determined?A net torque about the axis is produced by the addition of the separate torques. When the relevant (positive or negative) sign is the net torque about the axis is the sum of the individual torques, which are attributed to the magnitudes of the individual torques about the specified axis.
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explane how chemical equation shows that the reactants change and form the products
Chemical equation shows that the reactants change and form the products as a result of the reactants and products being rearranged during the reaction which result in different combinations in the products.
What is a Chemical equation?This is referred to as a written representation of the process that occurs during a chemical reaction and contains the reactants and products involved and an example is
H₂ + O₂ ⇒ H₂O
It shows that reactants change and form the products because the reactants and products are rearranged during the reaction and there is also a different combinations in the products.
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which intermolecular forces are possible in a mixture of ethyl acetate (ch3cooch2ch3) and n-hexane (c6h14)?
London dispersion and dipole-dipole interaction make up the bulk of the intermolecular forces in ethyl acetate liquid.
What kind of force exists between molecules in C6H14?Hexane, an alkane having a straight chain and six carbons but no double or triple bonds, is represented by the chemical formula C6H14. The only intermolecular forces that exist between this molecule and other molecules are London-dispersion forces, which are the least powerful intermolecular forces that exist between any two molecules.
Do polar bonding exist in ethyl acetate?Due to the fact that C=O, ethyl acetate is a polar substance. Additionally, because C-O bonds are polar, their bond dipole moments do not cancel one another out.
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7. How would the energy flow in a device that warms food without using a
flame or electricity? Record your evidence.
Energy flow in a device that warms food without using a flame or electricity is because of infrared radiation
When food or liquid become hot their molecule absorb energy and begin vibrating rapidly and start to bounce off each other and as they collide heat energy is produced and transferred which warm and cook our food and infrared radiation waves travel in any direction at the speed of light quickly heat food and mainly absorbed at the surface of whatever you are preparing and there are three process conduction and convention and radiation
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(a) write the dissolution reaction for solid nac2h3o2 below. (use the lowest possible coefficients. include states-of-matter under the given conditions in your answer.)
The dissolution reaction for NaC2H3O2 is as follows: -
NaC2H3O2 (s) ---> Na+ (aq) + C2H3O2 (aq)
Dissolution is the process by which a solute form a solution in a solvent. The rate at which the solute gets separated from the solvent is known as dissolution rate.
Once the ionic solid has dissolved, the anion that is formed is able to react as a base, with water as the acid. Write the net acid-base reaction that occurs when dissolved NaC2H3O2 reacts with water.
Dissolution of a Chemical or Physical Change. Dissolution can be a physical or a chemical change based on the solute and the solvent. If the solute breaks up into individual atoms and reacts with the solvent, then a chemical as well as physical change takes place.
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Please help AGAIN!
The data below shows the growth of a population of bacteria that has been injected into a rich culture medium. This type of population growth is sometimes used to model the spread of infectious diseases during an epidemic outbreak. Give one reason why this type of growth IS a good model for an epidemic. Give one reason why this type of growth IS NOT a good model for an epidemic.
The graph shows the continuous growth of bacteria at constant rate.
What is bacteria?Bacteria is defined as a creatures without a proper nucleus and only a few organelles that are prokaryotic unicellular organisms. The bacteria in our systems aid in the breakdown of the food we consume, assist in making nutrients available to us, and remove poisons.
The type of growth is a good model of epidemic because the growth of bacteria is continuous which increase the growth of epidemic as well. The type of growth is a bad model because growth of causes harmful effect to the body.
Thus, the graph shows the continuous growth of bacteria at constant rate.
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how does the diagram illustrate the relationship between respiration and photosynthesis
During photosynthesis, plants take in carbon dioxide from the atmosphere and exhale oxygen. Then, during breathing, animals take this oxygen in and exhale carbon dioxide.
What is the carbon cycle explain?The carbon cycle is the best way that civilization has found to recycle carbon atoms, which continually flow from the atmosphere into living organisms on Earth and back again. While the ocean, the air, and living things all contain some carbon, rocks and sediments are where the majority of it is preserved.
Why is the carbon cycle important?The carbon cycle is essential to life on Earth. Because nature tends to keep carbon levels in balance, the carbon content that is naturally produced by reservoirs is similar to the amount that is typically absorbed by reservoirs. By maintaining this carbon balance, the planet can sustain life indefinitely.
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What are 5 label requirements?.
The label requirements are portion size, carbohydrate, total Calories, you may see how many calories constitute one serving of the product. This figure is directly related to serving size.
What is carbohydrate ?Sugar molecules make up carbohydrates, or carbs. Carbohydrates are one of the three primary nutrients included in meals and beverages, along with proteins and fats.
Glucose is created through your body's breakdown of carbs. The primary source of energy for the cells, tissues, and organs in your body is glucose, sometimes known as blood sugar.
Carbohydrate-rich foods are a crucial component of a balanced diet. The body receives glucose from carbohydrates, which is then transformed into energy for maintaining biological processes and engaging in physical activity.
Thus, Cholesterol, Saturated and trans fats. Sodium, fiber and sugar are included in the total carbohydrates, along with protein, vitamins, and other nutrients.
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How many calories are needed to convert 1 g of liquid water at 10°c to solid ice at 0°c?.
The calories needed to convert liquid water is 90 calories.
The calories needed by the system depend on the heat released. The total heat received by the system will equal to total heat released by objects. It should follow
Q released = Q received
The heat can be defined by
Q = m . c . ΔT
where Q is heat, m is mass, c is the specific heat constant and ΔT is the change in temperature.
The given parameters are
m = 1 g
T = 10 °C
T' = 0 °C
c = 1 kal / g °C
L = 80 kal / g
Find the change in temperature
ΔT = T - T' = 10 - 0 = 10 °C
Find the calories needed to change temperature until 0 °C
Q = m . c . ΔT
Q = 1 . 1 . 10
Q = 10 calories
Find the calories needed to change water into solid ice
Q = m . L
Q = 1 . 80
Q = 80 calories
Hence the total calories is 90 calories.
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