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Physics · Kinetic Theory of Gases

JEE Main 2024 — 4 April, Shift 2 — Question 31

The translational degrees of freedom (ft f_t ) and rotational degrees of freedom ( fr \mathrm{f}_{\text {r }} ) of CH4\mathrm{CH}_{4} molecule are :

  1. Option A:

    ft=2f_{t}=2 and fr=2f_{r}=2

  2. Option B:

    ft=3f_{t}=3 and fr=3f_{r}=3

    Correct
  3. Option C:

    ft=3f_{t}=3 and fr=2f_{r}=2

  4. Option D:

    ft=2f_{t}=2 and fr=3f_{r}=3

Answer: B

Step-by-step solution

Since CH4\mathrm{CH}_{4} is polyatomic;

non-Linear D.O.F of CH4\mathrm{CH}_{4}

T. DOF=3\mathrm{DOF}=3

R DOF =3=3

Answer key and solution verified before publishing.

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Exam
JEE Main 2024
Paper
4 April, Shift 2
Subject
Physics
Chapter
Kinetic Theory of Gases
Topic
Equipartition Law of Energy and Degrees of Freedom
The translational degrees of freedom ( f t ) and rotational degrees… | JEE Main 2024 PYQ with Solution · DhiX AI