A gas cylinder contains the following mixture of gases: 10 g H₂, 15 g CH₄, 20 g SO₂ and 12 g Ar. Which gas exerts the largest partial pressure in the container?

Question

Quizplus · Accepted Answer

The partial pressure of a gas is proportional to its mole fraction in the mixture. H₂ has the smallest molar mass, so 10 g of H₂ corresponds to the largest number of moles, thus exerting the largest partial pressure.

A Gas Cylinder Contains the Following Mixture of Gases: 10