Physics Thermodynamics Heat, Carnot Engine, Refrigerator and Second Law of Thermodynamics MCQ (Single Correct)

In a cyclic process, work done by the system is

A
Zero
B
Equal to heat given to the system
C
More than the heat given to system
D
Independent of heat given to the system

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Text Solution

Verified by Experts
The correct answer is:
B

In a cyclic process, since the system returns to its initial state, the change in internal energy

must be zero. Therefore, by first law of thermodynamics, the net heat given to the system must be equal to the net work done by the system.

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