States of Matter and Gaseous StatemediumMCQ SINGLE

Helium atom is two times heavier than a hydrogen molecule .At 298 K, the average kinetic energy of aStates of Matter and Gaseous State Chemistry Question

Question

Helium atom is two times heavier than a hydrogen molecule .At 298 K, the average kinetic energy of a helium atom is

Answer: B

💡 Solution & Explanation

We know that, kinetic energy= 3RT/2 Kinetic energy doesn’t depend upon the mass of gas. Therefore, for both gases it must be similar at same temperatures. Maxwell's distribution of molecular speeds

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