If Q, E and W denote respectively the heat added, change in internal energy and the work done by a closed cycle process, then

Options

A. W=0
B. Q=W=0
C. E=0
D. Q=0

Answer

C

Explanation

In cyclic process since initial and final states are same internal energy is a state function therefore initial and final internal energies are also same but Q and W are not same during cyclic process. Hence, E = 0.