Gaseous

c

c

b

c

atoms likha hai bkl

b

a

Lamda is inversely proportional to d^2

so smaller molecule means longer mean free path

d

as it has the highest intermolecular forces due to dipole moment

b

c

Liquids arent liquifiable ABOVE crit temp

a

c

c

derivate V/T to get dV/V = dT/T

thus delta = 1/T

So xy = 1

hence hyperbola

b

d

c