Effusion

Practice Questions

College Chemistry › Effusion

Questions
5
1

At the same temperature, an unknown gas effuses at a rate that is times that of oxygen. Find the molar mass, in grams per mole, of the unknown gas.

2

Which of the following is a true statement with regards to the relative effusion rates of oxygen and carbon dioxide?

3

A sample of Ne(g) effusses through a tiny hole in 60.7 s. An unknown gas, under identical conditions, effusses in 45.6 s.

What is the molar mass of the unknown gas?

4

Suppose that gas A effuses at a rate that is twice that of gas B. If the mass of gas A is halved and the mass of gas B is doubled, which of the following correctly describes the new relative effusion rates of these two gasses?

5

Per Graham's law of effusion, how does the molar mass relate to both the rate and time of effusion?

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