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Questions  

A mono atomic gas is supplied the heat Q very slowly keeping the pressure constant. The work done by the gas will be

a
2Q3
b
3Q5
c
2Q5
d
Q5

detailed solution

Correct option is C

ΔQ=ΔU+ΔW⇒ΔW=(ΔQ)P−ΔU=(ΔQ)P[1−ΔU(ΔQ)P]=(ΔQ)P[1−CVCP]=Q×[1−35]=25Q

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