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MHT CET202525 Apr 2025Morning ShiftPhysicsKinetic Theory of GasesActual

According to the kinetic theory of gases, when two molecules of a gas collide with each other then

Options

  1. Aboth kinetic energy and momentum are conserved.
  2. Bneither kinetic energy nor momentum is conserved.
  3. Cmomentum is conserved but kinetic energy is not conserved.
  4. Dkinetic energy is conserved but momentum is not conserved.

Correct answer

A. both kinetic energy and momentum are conserved.

Step-by-step solution

Kinetic theory assumes gas molecule collisions are perfectly elastic, conserving both total kinetic energy and total momentum. Since momentum conservation applies to all collisions without external forces and elastic collisions additionally conserve kinetic energy, both quantities are preserved during intermolecular collisions. Answer: A

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