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A gas with negligible intermolecular int...

A gas with negligible intermolecular interactions shows compressibility factor `2` at a pressure 'P'. What is its van der Waals constant 'b' ?

A

PRT

B

`(P)/(RT)`

C

`(RT)/(P)`

D

`(T)/(PR)`

Text Solution

Verified by Experts

The correct Answer is:
C
`P(V_m -b) RT`
`PV_m - Pb = RT`
`(PV_m)/(RT) -(Pb)/(RT) = 1 rArr 2 - (Pb)/(RT) =1`
`rArr (Pb)/(RT) =1 b = (RT)/(P)`.
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