Published by:
CGP EDU Academic Team
Published on: September 12, 2026
If one mole of an ideal gas at 
is allowed to expand reversibly and isothermally ( 
to 
) its pressure is reduced to one-half of the original pressure (see figure). This is followed by a constant volume cooling till its pressure is reduced to one-fourth of the initial value 
. Then it is restored to its initial state by a reversible adiabatic compression ( 
to 
). The net workdone by the gas is equal to :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
c JEE Main 2021
Isothermal process 
Isochoric process 
Adiabatic process 
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