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Given van der Waals constant for NH(3), ...

Given van der Waals constant for `NH_(3), H_(2), O_(2) and CO_(2)` are respectively `4.17, 0.244, 1.36 and 3.59`, which one of the following gases is most easily liquefied?

A

`NH_(3)`

B

`H_(2)`

C

`O_(2)`

D

`CO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
van der Waals constant 'a' gives a magnitude of intermolecular forces of attraction. Greater the value of 'a', greater are the intermolecular forces of attraction and more easily the gas is liquefied. Hence, `NH_(3)` is liquefied most easily.
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