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(B) In a thermodynamic process,the work done by a gas is equal to the area under the $PV$ curve with respect to the volume axis.For a given expansion

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Isobaric

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(B) In a thermodynamic process,the work done by a gas is equal to the area under the $PV$ curve with respect to the volume axis.For a given expansion from volume ${V_1}$ to ${V_2}$,the pressure $P$ remains constant in an isobaric process,whereas it decreases in both isothermal and adiabatic processes.Since the isobaric process maintains the highest pressure throughout the expansion,the area under the $PV$ curve is the largest.Therefore,the work done follows the order: ${W_{adiabatic}} Thus,the work done is greatest for an isobaric expansion.

$A$ sample of gas expands from volume ${V_1}$ to ${V_2}$. The amount of work done by the gas is greatest when the expansion is

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