Chapter 10.3, Problem 3RC

Interpretation Introduction

Interpretation:

The gas with larger molar mass has to be determined under the given conditions.

Concept introduction:

If the density, temperature and pressure values are given then the molar mass of gas can be determined by using the equation,

$\begin{array}{c}\text{Molar}\text{mass}\text{M}\text{=}\text{d}\frac{\text{RT}}{\text{P}}\\ \text{P}\text{=}\text{pressure}\\ \text{d}\text{=}\text{density}\\ \text{T=}\text{temperature}\text{in}\text{K}\\ \text{R}\text{=}\text{Gas}\text{constant}\text{0}\text{.082057}\text{L}\text{.atm/K}\text{.mol}\end{array}$

This density of gas is expressed in $\text{g/mol}$ unit.