The van der Waals parameters for gases W, X, Y and Z are
`{:("Gas",a("atm"L^(2)mol^(-2)),b(L"mol"^(-1))),(W," "4.0," "0.027),(X," "8.0," "0.030),(Y," "6.0," "0.032),(Z," "12.0," "0.027):}`
Which one of these gases has the highest critical temperature?

The Van der Waal's parameters for gases W,X,Y and Z are- Which one of these gases has the highest critical temperature ?

The Van der Waals constants for two gases A and B are as follows : {:("Gas",a("atm L"^(2)" mol"^(-2)),b("L mol"^(-1))),(" A"," 1.63"," 0.0326"),(" B"," 3,72"," 0.0521"):} Which of these (i) is more easily liquefied? (ii) has larger molecular size?

van der Waal's constants for gases A,B and C are as follows: {:("Gas ",a("kPa "dm^(6)"mol"^(-2)),B(L//mol)),(A,410,0.027),(B,1215,0.03),(C,608,0.032):} Which of the following options contain correct arrangement of "gas with highest critical temperature" ad "gas with most ideal behaviour around 1850K " respectively?

van der Waal's constants of two gases X and Y are as given: {:(,a ("litre - atom " mol^(-2)),b ("litre " mol^(-1)),),("Gas X"," "5.6," "0.065,),("Gas Y"," "5.1," "0.012,):} What is correct about the two gases ?