The compressibility factor for a real gas at high pressure is :
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a
1
b
1+PbRT
c
1−PbRT
d
1+RTPb
answer is B.
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Detailed Solution
van der Waals' equation for one mole of a real gas isP+aV2(V−b)=RTor PV=RT+Pb+abV2−aVAt high pressures, the vander Waals' gas equation reduces to PV = RT + Pbor PVRT=1+PbRT∴Compressibility factor Z=PVRT=1+PbRT