Kinetic Theory Class 11 Case Study Questions Physics Chapter 12

Download CBSE and ICSE Books in PDF Format

Reading Time: 6 minutes

Last Updated on June 2, 2025 by XAM CONTENT

Hello students, we are providing case study questions for class 11 Physics. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 11 Physics. In this article, you will find case study questions for cbse class 11 Physics chapter 12 Kinetic Theory.

Chapter	Kinetic Theory
Type of Questions	Case Study Questions
Nature of Questions	Competency Based Questions
Board	CBSE
Class	11
Subject	Physics
Useful for	Class 11 Studying Students
Answers provided	Yes
Difficulty level	Mentioned
Important Link	Class 11 Physics Chapterwise Case Study

Customised Study Materials for Teachers, Schools and Coaching Institute

Table of Contents

Case Study Questions on Kinetic Theory

Case Study: The Space Capsule Air Leak Emergency

In 2032, an international space mission experienced a critical situation when a tiny micro-meteorite punctured the outer hull of a space capsule. Though the hole was barely visible, astronauts reported a sudden drop in internal pressure. The onboard sensors showed that gas molecules inside were escaping rapidly into space.

The engineering team onboard quickly sealed off affected chambers. They estimated the rate of pressure drop using the kinetic theory of gases, focusing on mean free path, average kinetic energy, and molecular speed. Based on the room temperature and known gas constants, they calculated the root mean square (rms) speed of the escaping air molecules and used this data to control the leak.

Later, students studying this incident discussed the assumptions of the kinetic theory and its real-world relevance to air pressure, temperature, and molecular dynamics in near-vacuum conditions.

Questions

Q1. What does the kinetic theory of gases say about the pressure exerted by a gas on the walls of its container?
(a) It is caused by gravitational force between molecules
(b) It results from collisions of molecules with each other
(c) It results from collisions of molecules with the container walls
(d) It is due to intermolecular attraction

Show Answer

Answer: (c) It results from collisions of molecules with the container walls
Explanation: According to kinetic theory, gas molecules exert pressure by colliding elastically with the container walls.

Q2. What is the root mean square speed (v_rms) of air molecules related to?
(a) Only pressure
(b) Only density
(c) Only number of molecules
(d) Temperature and molar mass

Show Answer

Answer: (d) Temperature and molar mass
Explanation: v_rms = √(3RT/M), where T is temperature and M is molar mass.

Q3. Which assumption of kinetic theory becomes invalid in the high-vacuum space environment near the capsule breach?
(a) Collisions between molecules are perfectly elastic
(b) There are no intermolecular forces
(c) Molecules are in constant, random motion
(d) The number of molecules is very large

Show Answer

Answer: (d) The number of molecules is very large
Explanation: In space near a leak, the number of gas molecules is drastically reduced, violating the assumption of a large number of particles.

Q4. Why was the temperature of the gas critical in estimating the leak rate?
(a) It affects the mass of the gas
(b) It controls molecular size
(c) It determines the average kinetic energy of the molecules
(d) It influences the shape of the hole

Show Answer

Answer: (c) It determines the average kinetic energy of the molecules
Explanation: Average kinetic energy of gas molecules is directly proportional to temperature: ⟨K.E.⟩ = (3/2)k_BT. Higher temperature means faster molecules and quicker pressure loss.

We hope the given case study questions for Kinetic Theory Class 11 helps you in your learning.

Also check

🚀 Boost Your Exam Prep: Get case study questions for all subjects (Class 6-12) now!

👉 Explore more resources on CBSE Class 11

Download eBooks for CBSE Class 12 Physics (Exam Special)

Topics from which case study questions may be asked

Molecular nature of matter
Behaviour of ideal gas
Kinetic theory of gases
Pressure of an ideal gas

The pressure of an ideal gas arises from the collision of molecules with the walls of the container.

For further practice on case study questions related to Kinetic Theory Class 11 Physics, we recommend exploring the link given below.

Practice More Case Study Questions on “Kinetic Theory”

Frequently Asked Questions (FAQs) on Kinetic Theory Case Study Questions

Q1: What are case study questions in Kinetic Theory?

A1: Case study questions in Kinetic Theory test your ability to apply concepts in real-life scenarios.

Q2: Are these questions asked in board exams?

A2: Yes, CBSE has started including case study/competency-based questions in final exams.

Q3: How should I prepare for case study questions?

A3: Focus on understanding concepts and practicing application-based problems.

Q4: Are answers provided for Class 11 Physics Kinetic Theory case study questions?

A4: Yes, detailed answers are provided for all questions.

Download Customised White Label Study Materials in MS Word Format

We are providing teaching resources to teachers and coaching institute looking for customised study materials in MS word format. Our High-quality editable study material which is prepared by the expert faculties are Highly useful for Teachers, Mentors, Tutors, Faculties, Coaching Institutes, Coaching Experts, Tuition Centers.

Download Product Brochure