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Kinetic Theory

JEE Main level, single correct, medium

66 of 168

Question 66 of 168

At what temperature is the r.m.s. velocity of a hydrogen molecule equal to that of an oxygen molecule at $47^{\circ} \mathrm{C}$ ?

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Answer: (D) 20 K

\mathrm{v}_{\mathrm{ms}} \alpha \sqrt{\mathrm{T} / \mathrm{m}} ; \quad \sqrt{\frac{273+47}{32}}=\sqrt{\frac{T}{2}}

\mathrm{T}=20 \mathrm{~K}

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JEE Main 2025 Apr 2 Shift 1 question paper

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JEE Main Physics practice question on Kinetic Theory (Speed of Gas), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

At what temperature is the r.m.s. velocity of a hydrogen molecule equal to that of an oxygen molecule at 47∘C47^{\circ} \mathrm{C}47∘C ?

JEE Main question paper PDF

More Physics practice

At what temperature is the r.m.s. velocity of a hydrogen molecule equal to that of an oxygen molecule at $47^{\circ} \mathrm{C}$ ?