Variation OF Z with P& T || Virial Equation OF State

Variation OF ΔHr and ΔUr Temperature [ KirchhOFf’s Equation ] || Variation OF ΔSr with P and T || Physical Significance OF Entropy || Third Law OF Thermodynamics and its Application

Virial equation OF state ( virial equation) || Boyle's temperature & inversion temperature,collision theory & mean free path

Variation of K with temperature as given by van't Hoff equation can be written as

van der Waal's gas equation can be reduced to virial eqation and virial equation (in terms of volume) is Z=A+(B)/(V_(m))+(C)/(V_(m)^(2))+…….. where A =first virial coefficient, B=second virial coefficient ,C = third virial coefficient. The third virial coeffdient of Hg(g) is 625 (cm^(2)//"mol")^(2) . What volume is available for movement of 10 moles He(g) atoms present in 50 L vessel?

According to virial equation of state for 1 mole of a real gas PV_(M)=RT[A+(B)/(V_(M))+(C)/(V^(2_(M)))+...] which one is not correct ? .