# Q.9 A compressor undergoes a reversible, stead...

Q.9 A compressor undergoes a reversible, steady flow process. The gas at inlet and outlet of the compressor is designated as state 1 and state 2 respectively. Potential and kinetic energy changes are to be ignored. The following notations are used:
v= specific volume and P=pressure of the gas.
The specific work required to be supplied to the compressor for this gas compression process is

(A) $\intop_{1}^{2} Pdv$

(B) $\intop_{1}^{2} vdP$

(C) v1(P2-P1)

(D) -P2(v1-v2)

Hint: