Question

cheeky THE CONSTANT a  IN VAN DER WALL'S EQN IS MAXM IN

A) He

B) NH3

C) CO2

D) N2

Joshi sir comment

 

Carbon dioxide                   a = 3.640

 

Helium                               a = 0.03457

 

Nitrogen                             a = 1.408

 

Ammonia                           a = 4.225

more ideal gases has lower values of a

 

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