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Questions  

An ideal monoatomic gas undergoes the process AB as shown in the figure. If the heat supplied and the work done in the process are ΔQ and ΔW, respectively. 

The ratio ΔQΔW is

a
2.50
b
1.67
c
1.25
d
0.40

detailed solution

Correct option is A

V-T graph is a straight line passing through originor     V∝THence, the given process is isobaric.ΔQΔW=nCpΔTnRΔT=CpR=52=2.5

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