Home Physics Thermodynamics Mix Corresponding to the behaviour of the molecu…
Physics Thermodynamics Mix MCQ (Single Correct)

Corresponding to the behaviour of the molecules of an ideal gas, which of the following statement is incorrect?

A
A molecule may loose some part of its kinetic energy when it collides elastically with another molecule.
B
There is a potential energy associated with the interaction between the molecules.
C
Collisions between the molecules of a gas sample cannot change the internal energy of the gas sample.
D
The speed of a molecule is not changed after collision with a wall of the container that is in thermodynamic equilibrium with the gas.

Share this question

For Instagram sharing, use “Apps” on mobile or copy the link.

Text Solution

Verified by Experts
The correct answer is:
B

According to KTG, for an ideal gas there exists no force of interaction between the molecules

hence no potential energy can be defined associated with the interaction.

As for sum of kinetic energies of two colliding molecules is conserved. Also total sum of KE of individual molecules is internal energy of the gas which is not altered by collisions between the molecules.

When a molecule collides with a wall it can exchange KE only if their temperatures are different. Collisions of the molecules with the wall are elastic if their temperatures are same.

Prepare Smarter with CGP Edu

Get practice questions, solutions, and test series in one place.

Write a Review

Share your experience with this question and solution.

Commentary

Send your comment, doubt, correction, or feedback to admin.

Student Reviews

What students say about this solution

No reviews yet. Be the first to write a review.

Similar Questions

Explore conceptually related problems

CG
CGP Question Assistant Question Bank + AI Help
Hi! Type your question or upload one screenshot. First I will search related questions from CGP Edu Question Bank. If none match, type YES and I will solve it with AI.
Upload only one screenshot at a time. Flow: Question Bank first → If not matched, type YES for AI solution.