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MHT CET Medical202622 April 2026Morning ShiftPhysicsKinetic Theory of GasesActual

The Translational K.E. of the molecules of a gas at absolute temperature (T) can be doubled by

Options

  1. Aincreasing T to 2 , T
  2. Bincreasing T to 2 T
  3. Cincreasing T to 4 T
  4. Ddecreasing T to T 2

Correct answer

B. increasing T to 2 T

Step-by-step solution

The average translational kinetic energy of a gas molecule is given by E = 3 2 k_B T . This shows that the translational kinetic energy is directly proportional to the absolute temperature of the gas, i.e., E T . To double the translational kinetic energy, the absolute temperature must be doubled. Therefore, the temperature should be increased to 2T . Answer: increasing T to 2 T

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