The direction of heat flow from one object to another is based on the difference in their
Correct answer: B. temperature.
- A. density.
- B. temperature.
- C. specific heat.
- D. thermal conductivity.
Explanation
B) Temperature (Correct): Heat always flows spontaneously from an object at a higher temperature to an object at a lower temperature. This difference in temperature creates a thermal gradient that drives the heat transfer until thermal equilibrium is reached.
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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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