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Two moles of helium gas are taken over t...

Two moles of helium gas are taken over the cycle ABCDA, as shown in the P-T diagram

The net work done on the gas in the cycle ABCDA is :

A

`277 R`

B

`1076 R`

C

`1904 R`

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
A
As `W_(AB)+W_(CD)=0` (figure)
`W_(n et)=W_(DA)+W_(BC)`
`= -415.9R+2Rxx500"log"_(e)((2xx10^(5))/(1xx10^(5)))`
`= -415.9R+1000Rxx2.3030xx0.3010`
`= -415.9R+693.02R= 277.1R`
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