Question

Rank these real gases according to how closely they resemble an ideal gas. CO, N2, Ne, He, NH3

Answer 1

Concepts and reason

A gas whose molecules do not have any kind of interactions and whose molecules possess negligible space in comparison to the whose volume of gas. This is only possible at high temperature and low pressure. Therefore, this is a hypothetical gas which is also known as ideal gas.

Fundamentals

A real gas is a non-hypothetical gas whose molecules interact and occupy space. A real gas can behave ideally only when they have negligible attractions.

The non-polar molecules possess Van der Waals forces which behave more like an ideal gas. And the polar molecules possess dipole-dipole interactions.

The correct order of real gases that can behave ideally is

${\rm{He}} > {\rm{Ne}} > {{\rm{N}}_{\rm{2}}} > {\rm{CO}} > {\rm{N}}{{\rm{H}}_{\rm{3}}}$

Ans:

The correct order of real gases that can behave ideally is

${\rm{He}} > {\rm{Ne}} > {{\rm{N}}_{\rm{2}}} > {\rm{CO}} > {\rm{N}}{{\rm{H}}_{\rm{3}}}$