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In thermodynamics, a process is called r...

In thermodynamics, a process is called reversible when

A

The surroundings and system change into each other.

B

There is no boundary between the system and the surroundings.

C

The surroundings are always in equilibrium with the system.

D

The system changes into the surroundings spontaneously.

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In thermodynamics, a process is called reversible when the surroundings are always in equilibrium with the system.
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