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Physics · Kinetic Theory of Gases

JEE Main 2024 — 30 January, Shift 1 — Question 44

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

  1. Option A:

    80 K

  2. Option B:

    -73 K

  3. Option C:

    4 K

  4. Option D:

    20 K

    Correct

Answer: D

Step-by-step solution

3RT2=3R(320)32\sqrt{\frac{3 R T}{2}}=\sqrt{\frac{3 R(320)}{32}} T=32016=20KT=\frac{320}{16}=20 K

Answer key and solution verified before publishing.

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Exam
JEE Main 2024
Paper
30 January, Shift 1
Subject
Physics
Chapter
Kinetic Theory of Gases
Topic
Pressure of Gas and Different speeds of Gas Molecules
At which temperature the r.m.s. velocity of a hydrogen molecule equal… | JEE Main 2024 PYQ with Solution · DhiX AI