Heat vaporization of water is _ kcal/kg
Correct answer: A. 574
- A. 574
- B. 674
- C. 474
- D. 364
Explanation
The heat of vaporization is the amount of heat energy required to convert a unit mass of a substance from a liquid to a gas at its boiling point. For water, the heat of vaporization is approximately 574 kcal/kg.
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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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