Consider the van der Waals constants, a and b, for the following gases. `{:(" Gas",Ar,Ne,Kr,Xe),(a//("atm "dm^(6)mol^(-2)),1.3,0.2,5.1,4.1),(b//(10^(-2)dm^(3)mol^(-1)),3.2,1.7,1.0,5.0):}` Which gas is expected to have the highest critical temperature ?
