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A gas obeys P(V-b) = RT. Then which of t...

A gas obeys `P(V-b) = RT`. Then which of the following are correct

A

Isochoric curves have the slope = R/V-b

B

Isobaric curves have the slope =R/P with intercept = b

C

For the gas compressibility factor = 1+ Pb/RT

D

Attractive forces predominate repulsive forces

Text Solution

Verified by Experts

a) Isochoric = V constant
`P(V- b) = RT , P = ((R )/(V-b))^(T)` , slope = `R/(V-b)`
b) Isobaric = P constant
`(V b) = (R/P)^T , V = (R/P)^T + b`
slope= `R/P`, constant = b
c) `P (V- b) = RT, PV e= RT + Pb`
`(PV)/(RT) = 1 + (b/(RT))P`
` Z > 1` = repulsive forces dominate.
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