At low pressures, van der Waals' equatio...

At low pressures, van der Waals' equation is written as `(P+(a)/(V^(2)))V=RT`.The compressibility factor is then equal to:

A

`(1 - (a)/(RTV))`

B

`(1- (RTV)/(a))`

C

`(1+ (a)/(RTV))`

D

`(1+ (RTV)/(a))`

Verified by Experts

The correct Answer is:

A

`(P + (a)/(V^(2))) V = RT`
`PV + (a)/(V) = RT`
`(PV)/(RT) + (a)/(VRT) = 1`
`Z = 1 - (a)/(VRT)`

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