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NEET2020PhysicsKinetic Theory of GasesActual

The mean free path for a gas, with molecular diameter d and number density n can be expressed as:

Options

  1. A1 2 n π d 2
  2. B1 2 n 2 π d 2
  3. C1 2 n 2 π 2 d 2
  4. D1 2 n π d

Correct answer

A. 1 2 n π d 2

Step-by-step solution

Mean free path for a gas sample λ m = 1 2 π d 2 n where d is diameter of a gas molecule and n is molecular density

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