1.

NH_(3)gas is liquified more easily than N_(2) . Hence :

Answer»

Vander Waal's constant a and b of `NH_3 gt `that of `N_2` 
Vander Waal's constant a and b of `NH_3 LT` that of `N_2` 
`a(NH_3)gt a (N_2) ` but `b (NH_3) lt b(N_2)`
`a (NH_3) lt a (N_2)` but `b (NH_3) gt (N_2)`

SOLUTION :More `a implies` more EASILY liquid.


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