Heat given to a body, which raises its temperature by 1°C is -------------
Correct answer: C. Thermal capacity
- A. Water equivalent
- B. Temperature gradient
- C. Thermal capacity
- D. Specific heat
Explanation
Option C is correct. Thermal capacity, or heat capacity, is the overall amount of heat required to raise the temperature of a given mass by 1°C, making it an extensive property dependent on the substance's quantity.Option A is incorrect because water equivalent refers to a comparative measure rather than a direct measure of heat capacity.Option B is incorrect because a temperature gradient pertains to spatial temperature change and not the amount of heat required for a temperature increase.Option D is incorrect because specific heat is concerned with per unit mass heat requirement, not the comprehensive heat needed for the entire body.
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About Thermal Equilibrium and Heat
Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.
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