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  4. In a cyclic process, work done by the system is

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Q. In a cyclic process, work done by the system is

AIIMSAIIMS 2013Thermodynamics

Solution:

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.