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In a gas, the mean free path is defined as the average distance traveled by a mo

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Question: In a gas, the mean free path is defined as the average distance traveled by a molecule between collisions. Which factor does NOT affect the mean free path?

Options:

  1. Temperature
  2. Pressure
  3. Molecular diameter
  4. Color of the gas

Correct Answer: Color of the gas

Solution: 

The mean free path is affected by temperature, pressure, and molecular diameter, but not by the color of the gas.

In a gas, the mean free path is defined as the average distance traveled by a mo

Practice Questions

Q1
In a gas, the mean free path is defined as the average distance traveled by a molecule between collisions. Which factor does NOT affect the mean free path?
  1. Temperature
  2. Pressure
  3. Molecular diameter
  4. Color of the gas

Questions & Step-by-Step Solutions

In a gas, the mean free path is defined as the average distance traveled by a molecule between collisions. Which factor does NOT affect the mean free path?
  • Step 1: Understand what mean free path means. It is the average distance a molecule travels before hitting another molecule.
  • Step 2: Identify the factors that can affect the mean free path. These include temperature (how hot or cold the gas is), pressure (how much gas is in a given space), and molecular diameter (the size of the gas molecules).
  • Step 3: Recognize that some factors do not affect the mean free path. For example, the color of the gas does not influence how far molecules travel before colliding.
  • Step 4: Conclude that while temperature, pressure, and molecular diameter are important, the color of the gas is not a factor that affects the mean free path.
  • Mean Free Path – The average distance a molecule travels between collisions in a gas.
  • Factors Affecting Mean Free Path – Temperature, pressure, and molecular diameter influence the mean free path.
  • Irrelevant Factors – Certain characteristics, like the color of the gas, do not affect the mean free path.
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