What is the primary factor that affects the rate of diffusion of a gas?

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Question: What is the primary factor that affects the rate of diffusion of a gas?

Options:

Correct Answer: Molar mass of the gas

Solution:

The rate of diffusion of a gas is primarily affected by its molar mass; lighter gases diffuse faster than heavier gases according to Graham\'s law.

What is the primary factor that affects the rate of diffusion of a gas?

What is the primary factor that affects the rate of diffusion of a gas?

Step 1: Understand what diffusion is. Diffusion is the process where gas molecules spread out from an area of high concentration to an area of low concentration.
Step 2: Learn about molar mass. Molar mass is the weight of one mole of a substance, measured in grams per mole (g/mol).
Step 3: Recognize that gases have different molar masses. For example, hydrogen is lighter than oxygen.
Step 4: Know that lighter gases move faster than heavier gases. This is because lighter molecules can travel more quickly.
Step 5: Apply Graham's law, which states that the rate of diffusion of a gas is inversely proportional to the square root of its molar mass. This means that as the molar mass increases, the rate of diffusion decreases.

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