Question

Given below are the critical temperatures of some of the gases:

Gas	Critical temperature (K)
He	5.2
CH4	190
CO2	304.2
NH3	405.5

The gas showing the least adsorption on a definite amount of charcoal is:

विकल्प

• He

• CH₄

• CO₂

• NH₃

Answer 1

He

Explanation:

The critical temperature of a gas indicates its ease of liquefaction. The higher the critical temperature of a gas, the stronger the intermolecular attractive forces and thus the ease of liquefaction.