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Manipal MET2012PhysicsKinetic Theory of Gases

Two gases are at absolute temperatures 300 K and 350 K respectively. The ratio of average kinetic energy of their molecules is

Options

  1. A6: 7
  2. B36: 49
  3. C7: 6
  4. D343: 216

Correct answer

A. 6: 7

Step-by-step solution

From the relation, aligned & KE = 3 2 k T & ( KE )₁ ( KE )₂ = T₁ T₂ (become k is constant) aligned Given, T₁=300 ~K , T₂=350 ~K ( KE )₁ ( KE )₂ = 300 350 = 6 7

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