Question

The state of a mole of an ideal gas changed from state A at pressure $2P$ and volume V follows four different processes and finally returns to initial state A reversibly as shown in the graph, answer the following question.

What would be the work done in state B to C?

• A. $Zero$
• B. $2PV$
• C. $PV$
• D. $-PV$

Answer 1

The correct option is A $Zero$

In conversion from B to C, volume does not change or $\Delta V=0$,

$W=-p\Delta V$

Therefore, $W=0$.