1.

The Vander Waal's constant 'a' for the gases O_(2), N_(2), NH_(3) and CH_(4) are 1.3, 1.390, 4.170 and 2.253 L^(2) atm mol^(-2) respectively. The gas which can be most easily liquefied is

Answer»

`O_(2)`
`N_(2)`
`NH_(3)`
`CH_(4)`

Solution :a' is directly RELATED to forces of attraction. Hence greater the value of 'a', more easily the gas is liquified.
Value of constant a is greater than other for `NH_(3)` that's why `NH_(3)` can be most easily LIQUEFIED.


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