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NEET2026PhysicsChapterActual

Match List I with List II. List I List II A Average kinetic energy per degree of freedom per molecule 1 2RT M B Total translational kinetic energy of 1 mole of an ideal gas 2 1 2 n d^2 C Most probable speed of gas molecules 3 1 2 k_B T D Mean free path of a gas molecule 4 3 2 RT Choose the correct answer from the options given below:

Options

  1. AA - 4, B - 3, C - 1, D - 2
  2. BA - 3, B - 4, C - 2, D - 1
  3. CA - 3, B - 4, C - 1, D - 2
  4. DA - 4, B - 3, C - 2, D - 1

Correct answer

C. A - 3, B - 4, C - 1, D - 2

Step-by-step solution

According to the equipartition theorem, the average kinetic energy per degree of freedom per molecule is 1 2 k_B T . The total translational kinetic energy of 1 mole of an ideal gas is 3 2 RT . The most probable speed of gas molecules is given by v_ mp = 2RT M . The mean free path of a gas molecule is given by = 1 2 n d^2 . Thus, the correct matching is A - 3, B - 4, C - 1, D - 2. Answer: A - 3, B - 4, C - 1, D - 2

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