The P-V diagram of a diatomic ideal gas ...

The P-V diagram of a diatomic ideal gas system going under cyclic process as shown in figure. The work done during an adiabatic process CD is (use `gamma=1.4`):

A

`400J`

B

`-400J`

C

200J

D

`- 500 J `

Verified by Experts

The correct Answer is:

D

`W=(P_1V_1-P_2V_2)/(gamma-1)`
`=(100xx4 -200 xx3)/(0.4)=-(2000)/4=-500J`

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