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For a real gas following vander waal equ...

For a real gas following vander waal equation is obtained `P(V_m-b) =RT and `((deltaZ)/(deltaP))_T = (xb)/(RT)`. Then find value of X

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The correct Answer is:
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`P(V_(m)-b)=RT`
`rArr PV_(m) -Pb =RT`
`rArr (PV_(m))/(RT) = 1+(Pb)/(RT)`
`rArr Z = 1 +(Pb)/(RT)`
`rArr ((deltaZ)/(dP))_(T) = b/(RT)`
` :. x = 1 `
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