Physics
Heat
Easy
Question
A system is said to be in thermal equilibrium if
- the macroscopic variables do not change in time
- the microscopic variables do not change in time
- the macroscopic variables change in time
- the microscopic variables change in time
The correct answer is: the macroscopic variables do not change in time
In thermal equilibrium the macroscopic variables like pressure, volume, temperature, mass and composition do not change with time.
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