Answer to Question #198964 in Chemistry for Hsn

Question

Arrange the following gases in increasing order of non ideality also given reason. H2, CH4, NH3

Answer 1

The volume of gas molecules and attraction forces are the major contributors to the non-ideal behaviour of gases. Since volume is proportional to the size of the molecules and intermolecular attraction directly depends on the size of electron cloud in a molecule, the non-ideality increases in the following order:

H₂ < NH₃ < CH₄