Consider a gas of triatomic molecules. The molecules are assumed to be triangular and made of massless rigid rods phase vertices are occupied by atoms. The internal energy of a mole of the gas at temperature T is 
Option: 1 \frac{5}{2}RT
 
Option: 2 \frac{3}{2}RT
Option: 3 \frac{9}{2}RT  
Option: 4 3\; RT

Answers (1)

Degree of freedom of the non-linear triatomic molecules is - 6

As we know that the internal energy of the triatomic gas is - 

\frac{f}{2}. R.T

Now f = 6

So, Internal energy -

\frac{6}{2}. R.T = 3RT

Most Viewed Questions

Preparation Products

Knockout JEE Main (Six Month Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 9999/- ₹ 8499/-
Buy Now
Knockout JEE Main (Nine Month Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 13999/- ₹ 12499/-
Buy Now
Test Series JEE Main 2024

Chapter/Subject/Full Mock Tests for JEE Main, Personalized Performance Report, Weakness Sheet, Complete Answer Key,.

₹ 7999/- ₹ 4999/-
Buy Now
JEE Main Rank Booster 2023

Booster and Kadha Video Lectures, Unlimited Full Mock Test, Adaptive Time Table, Faculty Support.

₹ 9999/- ₹ 6999/-
Buy Now
Knockout JEE Main (One Month Subscription)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, Faculty Support.

₹ 7999/- ₹ 4999/-
Buy Now
Boost your Preparation for JEE Main 2021 with Personlized Coaching
 
Exams
Articles
Questions