Question

In flask of volume v litres, 0.2 mol of oxygen, 0.4 mol nitrogen, 0.1 mol of ammonia and 0.3 mol of helium are enclosed in 2˚c

Answer 1

The volume of the gas depends upon the number of moles only. They do not depend on the nature of the gas. The mixture of gases have ,(0.2+0.3+0.4)= 0.9