Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKinetic Theory of Gases and Gas LawsMedium2 minQB
PhysicsMediumsingle choice

A flask contains hydrogen and helium in the ratio 1 : 3 at 300 K. The masses of a helium and a hydrogen molecule are in the ratio 2 : 1. What is the ratio of the average kinetic energies of these molecules at 600 K?

Options:

Answer:
D
Solution:

Average kinetic energy depends only on temperature. Both gases are at 600 K, so the ratio is 1. D.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Kinetic Theory of Gases and Gas Laws
⏱ 2mℹ️ Source: QB

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