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  3. An ideal gas expands isothermally from a volume V1 and V2 and then compressed to original volume V1 adiabatically. Initial pressure is P1 and final pr

. An ideal gas expands isothermally from a volume V1 and V2 and then compressed to original volume V1 adiabatically. Initial pressure is P1 and final pr

(a) P3 > P1, W > 0                     

(b) P3 < P1, W < 0                

(c) P3 > P1, W < 0                 

(d) P3 = P1, W = 0

 

Best Answer

Slope of adiabatic process at a given state (P, V, T) is more than the slope of isothermal process. The corresponding P-V graph for the two process is as shown in figure.

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