Question

Which of the following is/are correct for a gas obeying Van der Waals equation?

A
A gas having negligible size and reasonable intermolecular force follows (P+aV2m)(Vm)=RT
B
A gas having negligible intermolecular force and reasonable size follows: Z=1PbRT
C
A gas having negligible size and negligible intermolecular force follows: PVm=RT
D
At boyle's temperature, gas follows PVm=RT at all pressure
Solution
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The correct options are
A A gas having negligible size and reasonable intermolecular force follows (P+aV2m)(Vm)=RT
C A gas having negligible size and negligible intermolecular force follows: PVm=RT
The equation of state for a gas having negligible volume and reasonable intermolecular forces is (P+aV2m)(Vm)=RT..
The equation of state for a gas having negligible volume and negligible intermolecular forces is PVm=RT.
The second equation can be obtained from first equation by substituting a=0.
The first equation can be obtained from Van der Waals equation of state (p+aV2m)(Vmb)=Rt by substituting b=0.

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