1.

For a certain gas which deviates a little from ideal behaviour, a plot between P/p vs P was found to be non- linear . The intercept on y-axis will be :A. `(RT)/(M)`B. `(M)/(RT)`C. `(MZ)/(RT)`D. `(R)/("TM")`

Answer» Correct Answer - a
(a) `P(V-nb)=nRT`
`PV-P" n "b=nRT " "d=("Mass")/("Volume")`
`PV=nRT+P" n "b" " n=("Mass")/(M)`
`P("Mass")/(d)=nRT+P" n "b `
`(P)/(d)=(n)/("Mass")RT+(P" n "b)/("Mass")`
`(P)/(d)=(RT)/(M)+(Pb)/(M)`


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