1.what do you mean by heat capacity
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Answer:
Heat capacity, ratio of heat absorbed by a material to the temperature change. It is usually expressed as calories per degree in terms of the actual amount of material being considered, most commonly a mole (the molecular weight in grams). The heat capacity in calories per gram is called specific heat. The definition of the calorie is based on the specific heat of water, defined as one calorie per degree Celsius.
Heat capacity
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Heat
Specific heat
Dulong–Petit law
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Electronic specific heat
At sufficiently high temperatures, the heat capacity per atom tends to be the same for all elements. For metals of higher atomic weight, this approximation is already a good one at room temperature, giving rise to the law of Dulong and Petit (see Dulong-Petit law). For other materials, heat capacity and its temperature variation depend on differences in energy levels for atoms (available quantum states). Heat capacities are measured with some variety of calorimeter, and, using the formulation of the third law of thermodynamics, heat-capacity measurements became important as a means of determining the entropies of various materials.
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thermodynamics: Heat capacity and specific heat
As shown originally by Count Rumford, there is an equivalence between heat (measured in calories) and...
The Editors of Encyclopaedia Britannica
This article was most recently revised and updated by Adam Augustyn, Managing Editor, Reference Content.
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Explanation:
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Answer:
Heat capacity is an intrinsic physical property of a substance that measures the amount of heat required to change that substance’s temperature by a given amount. In the International System of Units (SI), heat capacity is expressed in units of joules per kelvin. Heat capacity is an extensive property, meaning that it is dependent upon the size/mass of the sample.