An ideal gas expands isothermally from a volume to and then compressed to original…

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

Problem

An ideal gas expands isothermally from a volume V1V_1 to V2V_2 and then compressed to original volume V1V_1 adiabatically. Initial pressure was P1P_1 and final pressure was P3P_3. The total work done is ww, then: (1) P3>P1P_3 > P_1 , w=+vew = +ve (2) P3<P1P_3 < P_1 , w=−vew = -ve (3) P3>P1P_3 > P_1 , w=−vew = -ve (4) P3=P1P_3 = P_1 , w=0w = 0

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