At low pressure the van der Waals' equation is written as .
A
`(PV)/(RT) = [1-(a)/(RTV)]`
B
`(PV)/(RT) = [1-(a)/(RTV)]`
C
`(PV)/(RT) = [1+(a)/(RTV)]`
D
`(PV)/(RT) = [1+(a)/(RTV)]`
Text Solution
Verified by Experts
van der Waals' equation is `[P+(a)/(V^(2))][V-b]=RT` At low pressure volume correction (b) may be neglected Thus `[P+(a)/(V^(2))][V-b]=RT` or `PV+(a)/(V) =RT` or `PV =RT [ 1 - (a)/(RTV)]` .
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Knowledge Check
At low pressures, the van der Waal's equation is written as [P + (a)/(V^(2))] V = RT The compressiblity factor is then equal to
A
`(1 - (a)/(RTV))`
B
`(1- (RTV)/(a))`
C
`(1+ (a)/(RTV))`
D
`(1+ (RTV)/(a))`
In the van der Waals equation
A
`b` is the volume occupied by the gas molecules
B
`b` is four times the volume occupied by the gas molecules
C
`b` is the correction factor for intermolecular attraction
D
None of these
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