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Question 850010
JEE Chemistry · Hard

States of Matter and Gaseous State: JEE Advanced MCQ

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JEE AdvancedHardQuestion 850010

Question

The mean free path (λ) of gas molecules is:
  1. A
    The average distance between successive collisions
    Correct
  2. B
    The average speed
  3. C
    The distance from wall to wall
  4. D
    Fixed at 22.4 L/mol

Correct answer

The average distance between successive collisions

Explanation

Mean free path λ = 1/(√2 π d² n) where d = molecular diameter and n = number density. λ decreases with increasing pressure and decreasing temperature. Viscosity, thermal conductivity, and diffusion are related to mean free path.

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