Question

Following table represents critical temperature of some gases.

Arrange these gases in their increasing order of liquificationGas	H2	He	N2	O2
Tc/K	33.2	5.3	126	154.3

• A. He < N2 < H2 < O2
• B. H2 < He < N2 < O2
• C. He < H2 < N2 < O2
• D. O2 < N2 < H2 < He

Answer 1

Answer: (C)

He < H2 < N2 < O2

Answer 2

The correct option is (C): He < H2 < N2 < O2.