An ideal gas is initially at is expanded to and then compressed adiabatically to the…

PHYSICS · Single correct · CBSE · Physics · Thermodynamics · Thermodynamics

Problem

An ideal gas is initially at

P_1, V_1

is expanded to

P_2, V_2

and then compressed adiabatically to the same volume

V_1

and pressure

P_3

. If

W

is the net work done by the gas in complete process which of the following is true (1)

W > 0; P_3 > P_1

(2)

W < 0; P_3 > P_1

(3)

W > 0; P_3 < P_1

(4)

W < 0; P_3 < P_1