The state of thermal equllibrium between two systems is determined by equality of:
Correct answer: C. Temperature
- A. Pressure
- B. Volume
- C. Temperature
- D. Mass
Explanation
Thermal equilibrium between two systems is determined by the equality of temperature, as stated by the Zeroth Law of Thermodynamics. This law implies that if no heat flows between the two systems, they are at the same temperature. Pressure and volume relate to mechanical and volumetric properties, respectively, but do not define thermal equilibrium. Mass influences heat capacity but is not a determining factor for thermal equilibrium.
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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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