Question

The gas with the highest critical temperature is

A
H2
B
He
C
N2
D
O2
E
CO2
Solution
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Critical temperature (T) is the measure of intermolecular forces of attraction. The order of the critical temperature of the given gases is as
Tc(K)CO2304.2K>O2(154.3K)>N2(126.2K)>H2(33.2K)>He(5.2K)

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