Two non-reactive monoatomic ideal gasses have their atomic masses in the ratio 2 : 3. The ratio of their partial pressures, when enclosed in a vessel kept at a constant temperature, is 4 : 3. The ratio of their densities is

Engineering

Physics

Degree of Freedom Internal Energy of Gas and Specific Heat Capacity of Gases

Question

6 : 9

1 : 4

8 : 9

1 : 2

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PM = $ρ$ RT

$\frac{s_{1}}{s_{2}} = \frac{P_{1}}{P_{2}} \frac{M_{1}}{M_{2}} = \frac{4}{3} \times \frac{2}{3} = \frac{8}{9}$