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Answer:
3. The rate of effusion of a gaseous substance is inversely proportional to the square root of its molar mass. Thus the rate at which a molecule, or a mole of molecules, diffuses or effuses is directly related to the speed at which it moves.
4. Graham's law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight. ... Therefore, the rates of diffusion of different gases are inversely proportional to the square roots of their mass densities.
5. From Graham's law, we can use the molar mass of each gas: rate of effusion of hydrogenrate of effusion of oxygen=√32g mol−1 √2g mol−1 =√16√1=41 rate of effusion of hydrogen rate of effusion of oxygen = 32 g mol − 1 2 g mol − 1 = 16 1 = 4 1 Hydrogen effuses four times as rapidly as oxygen.
Explanation:
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