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National Institute of Open Schooling (NIOS)
Class XII
Physics (312)
Kinetic Theory of Gases (Set 01 (Foundation Level))

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National Institute of Open Schooling (NIOS) Class XII Physics (312) Set 01 (Foundation Level) English Medium 100% Free Practice Test

National Institute of Open Schooling (NIOS) Class XII Physics (312): Kinetic Theory of Gases Online Test (Set 01 (Foundation Level)) | TargetExams

Kinetic Theory of Gases — Set 01 (Foundation Level)

Take free online mock test for National Institute of Open Schooling (NIOS) Class XII Physics (312) chapter 'Kinetic Theory of Gases'. 20 MCQs, 20 minutes, detailed solutions & score analysis.

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20 MCQs

Questions

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20 Mins

Duration

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20 Marks

Total Marks

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+1.0

Per Correct

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0.0

Negative Mark

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English

Language

Start Test Now (English Medium)

Instant Scorecard Step-by-Step Solutions NIOS Self-Learning Material (SLM) Pattern

Chapter Study Guide & In-Depth Notes

Master the key concepts, vocabulary, and high-yield questions before starting the test.

3 Sections

Chapter Overview & Core Concepts: Kinetic Theory of Gases

Class 12 Study Guide

Mastering Kinetic Theory of Gases in Class 12 provides critical subject intuition, analytical skills, and examination readiness.

Examinations test fundamental principles, definitions, cause-and-effect reasoning, and real-world applications under timed conditions.

Core Moral & Key Takeaway:

Grasping core concepts and practicing with timed chapter-wise CBT tests guarantees top performance in board exams.

Key Terminology, Definitions & Principles

Glossary & Concepts

Term / Formula	Type	Definition / Meaning	Explanation / Notes	Example / Usage
Core Concept	Principle	Primary concept governing Kinetic Theory of Gases.	मुख्य सिद्धांत	"Understand and apply the principle accurately."
Analytical Deduction	Skill	Evaluating evidence to draw correct conclusions.	तार्किक विश्लेषण	"Examine question clues systematically."

Key Features & Devices Explored:

Systematic Elimination

Eliminate distractor choices before selecting the best answer.

Pacing & Accuracy

Complete each question within 60 seconds to maintain steady momentum.

High-Yield Revision Points & Solved Board Exam Q&A

Revision Notes

⚡ High-Yield Exam Takeaways:

Review all key textbook terms, definitions, and formulas.
Pay attention to units, boundary values, and key keywords in questions.
Solve Foundation Set 01 to build confidence, followed by Advanced Set 02 for exam excellence.

Frequently Asked Questions & Model Answers:

Q1 How should students prepare for Kinetic Theory of Gases exams?

Answer: Read the chapter thoroughly, practice step-by-step solved examples, memorize key definitions, and evaluate preparation using timed online CBT mock tests.

Sample Questions Preview

Free Sneak Peek

Here is a sneak peek of the questions included in this test set. Test your preparation by viewing the answer and detailed explanation before starting the timed exam.

The root-mean-square (rms) speed of oxygen gas molecules ($\text{O}_2$, molar mass $M = 32.0\text{ g/mol} = 0.032\text{ kg/mol}$) at an absolute temperature of $T = 300\text{ K}$ is: (Take $R = 8.314\text{ J/(mol}\cdot\text{K)}$)

$T = 300\text{ K}$ के पूर्ण तापमान पर ऑक्सीजन गैस अणुओं ($\text{O}_2$, दाढ़ द्रव्यमान $M = 32.0\text{ g/mol} = 0.032\text{ kg/mol}$) की मूल-माध्य-वर्ग (आरएमएस) गति है: ($R = 8.314\text{ J/(mol}\cdot\text{K)}$ लें)

$484\text{ m/s}$

$384\text{ m/s}$

$515\text{ m/s}$

$420\text{ m/s}$

Correct Answer: Option A

Explanation:

Step-by-step solution:

1. The root-mean-square speed of ideal gas molecules is given by:

$$v_{\text{rms}} = \sqrt{\frac{3 R T}{M}}$$

2. Substitute $R = 8.314\text{ J/(mol}\cdot\text{K)}$, $T = 300\text{ K}$, and $M = 0.032\text{ kg/mol}$:

$$v_{\text{rms}} = \sqrt{\frac{3 \times 8.314 \times 300}{0.032}} = \sqrt{\frac{7482.6}{0.032}} = \sqrt{233{,}831.25} \approx 483.6\text{ m/s} \approx 484\text{ m/s}$$

चरण-दर-चरण समाधान:

1. आदर्श गैस अणुओं की मूल-माध्य-वर्ग गति इस प्रकार दी गई है:

$$v_{\text{rms}} = \sqrt{\frac{3 R T}{M}}$$

2. विकल्प $R = 8.314\text{ J/(mol}\cdot\text{K)}$, $T = 300\text{ K}$, और $M = 0.032\text{ kg/mol}$:

$$v_{\text{rms}} = \sqrt{\frac{3 \times 8.314 \times 300}{0.032}} = \sqrt{\frac{7482.6}{0.032}} = \sqrt{233{,}831.25} \approx 483.6\text{ m/s} \approx 484\text{ m/s}$$

The average translational kinetic energy of a single gas molecule at a room temperature of $27.0^\circ\text{C}$ ($300\text{ K}$) is: (Take Boltzmann's constant $k_B = 1.38 \times 10^{-23}\text{ J/K}$)

कमरे के तापमान $27.0^\circ\text{C}$ ($300\text{ K}$) पर एकल गैस अणु की औसत स्थानान्तरणीय गतिज ऊर्जा है: (बोल्ट्जमैन स्थिरांक लें $k_B = 1.38 \times 10^{-23}\text{ J/K}$)

$4.14 \times 10^{-21}\text{ J}$

$6.21 \times 10^{-21}\text{ J}$

$2.07 \times 10^{-21}\text{ J}$

$8.28 \times 10^{-21}\text{ J}$

Correct Answer: Option B

Explanation:

Step-by-step solution:

1. By the equipartition theorem, the average translational kinetic energy per molecule in three dimensions is:

$$\bar{\epsilon}_{\text{trans}} = \frac{3}{2} k_B T$$

2. Substitute $k_B = 1.38 \times 10^{-23}\text{ J/K}$ and $T = 300\text{ K}$:

$$\bar{\epsilon}_{\text{trans}} = \frac{3}{2} \times (1.38 \times 10^{-23}\text{ J/K}) \times 300\text{ K} = 6.21 \times 10^{-21}\text{ J}$$

Note: This quantity depends solely on absolute temperature and is identical for all ideal gases regardless of molecular mass.

चरण-दर-चरण समाधान:

1. समविभाजन प्रमेय के अनुसार, तीन आयामों में प्रति अणु औसत अनुवादात्मक गतिज ऊर्जा है:

$$\bar{\epsilon}_{\text{trans}} = \frac{3}{2} k_B T$$

2. विकल्प $k_B = 1.38 \times 10^{-23}\text{ J/K}$ और $T = 300\text{ K}$:

$$\bar{\epsilon}_{\text{trans}} = \frac{3}{2} \times (1.38 \times 10^{-23}\text{ J/K}) \times 300\text{ K} = 6.21 \times 10^{-21}\text{ J}$$

नोट: यह मात्रा पूरी तरह से पूर्ण तापमान पर निर्भर करती है और आणविक द्रव्यमान की परवाह किए बिना सभी आदर्श गैसों के लिए समान है।

How Chapter-Wise Online CBT Tests Build Winning Habits for Future Competitive Exams

Focused chapter-wise CBT practice builds the speed, mental stamina, and analytical discipline required to ace CUET, JEE Main, NEET UG, NDA, CA Foundation, and College Entrance Exams.

Competitive Edge

Real-Time Clock Awareness & Pacing

समय प्रबंधन एवं गति नियंत्रण

In school examinations, students write answers without active pacing. In national entrance tests, students have barely 45-60 seconds per MCQ. Practicing with a 20-minute timer instills instinctive time-budgeting and prevents last-minute exam panic.

Mastery of the Elimination Technique

विकल्प निष्कासन विधि में दक्षता

Top rankers in competitive exams rarely compute every problem blindly. They spot subtle traps, evaluate extreme values, and eliminate 2 out of 4 distractors within seconds. Our 4-option sets teach critical distractor analysis.

CBT Screen Stamina & Digital Comfort

कंप्यूटर आधारित परीक्षा का सहज अभ्यास

Almost all major national exams (CUET, JEE, NEET, SSC, Banking) are 100% computer-based. Students who only study on paper experience eye strain and navigation mistakes on exam day. Early CBT practice creates effortless digital fluency.

Immunity to Negative Marking

सटीकता और नकारात्मक अंकन से सुरक्षा

Careless errors—such as misreading "NOT" or "EXCEPT"—ruin thousands of competitive aspirations each year. Regular objective testing builds the habit of double-checking question keywords before locking answers.

Instant Diagnostic Feedback Loop

तत्काल त्रुटि निवारण एवं आत्म-मूल्यांकन

Traditional paper tests take weeks to grade, by which time the student has forgotten their thought process. TargetExams provides instant scorecards and step-by-step solutions while the conceptual puzzle is still fresh.

Syllabus Concepts Evaluated in this Chapter

This test series specifically evaluates the core competencies and learning objectives outlined in the official syllabus:

Core definitions, fundamental theorems, and essential concepts of this chapter.
Step-by-step mathematical reasoning and deductive problem-solving.
Application of standard formulas and operations in real-world scenarios.
Critical examination of common exam pitfalls and misleading options.
Higher-order thinking skill (HOTS) questions to prepare for school examinations.
Speed and accuracy mastery under standard timed CBT exam conditions.

Exam Rules & Test Taking Guidelines

Total Questions: The test consists of exactly 20 objective type questions.
Time Allowed: 20 Minutes countdown timer begins as soon as the test launches.
Marking Scheme: +1.0 mark is awarded for each correct answer.
Zero Penalty: There is 0.0 negative marking for incorrect or unattempted questions.
Question Palette: Freely navigate between questions and flag questions for later review.
Review & Solutions: Access instant scorecard and full step-by-step solutions upon submission.

Frequently Asked Questions (FAQs)

Yes! Foundation Practice Set 01 for every chapter in National Institute of Open Schooling (NIOS) Class XII Physics (312) is 100% free to attempt. Students can test their knowledge without any payment or hidden fees.

This page is dedicated to English Medium. You can also attempt this test in Hindi Medium by clicking the switcher at the top.

Absolutely. All 20 multiple-choice questions are strictly designed in line with the latest guidelines, covering both basic conceptual understanding and higher-order thinking skills.

The test contains 20 MCQs to be solved in 20 minutes. Each question carries +1.0 mark for a correct answer, and there is zero (0.0) negative marking for incorrect answers.

Yes. Immediately upon submitting your test, you receive a comprehensive performance summary including your total score, accuracy percentage, time spent per question, and full step-by-step explanations for all 20 questions.

Kinetic Theory of Gases (Set 01 (Foundation Level))

20 MCQs • 20 Mins • 100% Free Practice Test

National Institute of Open Schooling (NIOS) Class XII Physics (312): Kinetic Theory of Gases Online Test (Set 01 (Foundation Level)) | TargetExams

Chapter Study Guide & In-Depth Notes

Chapter Overview & Core Concepts: Kinetic Theory of Gases