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MHT CET Chemistry States of Matter 2026 MHT CET 2026 (11 April Shift 1)

MHT CET Chemistry Question (2026) — Solution

Question

According to the kinetic molecular theory of gases, the average kinetic energy of gas molecules:

Options

  1. A. Increases with increase in pressure
  2. B. Decreases with increase in volume
  3. C. Is directly proportional to the absolute temperature
  4. D. Is the same for all gases at the same volume

Answer

C. Is directly proportional to the absolute temperature

Step-by-step solution

According to the kinetic molecular theory of gases, the average translational kinetic energy of a gas molecule is given by E = 3 2 kT, where k is the Boltzmann constant and T is the absolute temperature. For one mole of an ideal gas, the average kinetic energy is E = 3 2 RT, where R is the universal gas constant. This shows that the average kinetic energy of gas molecules depends only on the absolute temperature and is directly proportional to it. It is independent of pressure, volume, and the nature of the gas. Answer: Is directly proportional to the absolute temperature

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