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Chemistry Chemical Thermodynamics Mock Test 3 for NEET Students

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Chemistry Chemical Thermodynamics NEET Mock Test 3: Important MCQs and Answer Keys

Mock Test: 20 Questions – 20 Minutes
Prepare yourself for NEET with 20 challenging questions from Chemistry – Chemical Thermodynamics. You have exactly 20 minutes to complete this test. Each correct answer carries 4 marks and each wrong answer carries -1 mark (NEET marking scheme). Ready to begin?

Time Left: 20:00

Q1. Which one of the following is not a state function?

Q2. Which of the following is true for a spontaneous process?

Q3. What is the value of ΔG for a reaction at equilibrium?

Q4. The enthalpy change during the formation of 1 mole of a compound from its elements under standard conditions is called:

Q5. The increase in enthalpy (ΔH) for exothermic reactions is:

Q6. For an ideal gas, the work done in a reversible isothermal expansion is:

Q7. In the equation ΔG = ΔH – TΔS, what does T represent?

Q8. Entropy change for an irreversible process is:

Q9. The natural direction of a spontaneous process is the one in which:

Q10. For an isolated system, the change in entropy (ΔS) is:

Q11. Hess's law is based on which fundamental principle?

Q12. Which of the following quantities is always positive for a spontaneous process?

Q13. Which of the following pairs represents intensive properties?

Q14. Which of the following equations describes the first law of thermodynamics?

Q15. The standard enthalpy of combustion is always:

Q16. Which one of the following is an extensive property?

Q17. What is the ΔG° for a reaction with K = 1 at 298K?

Q18. The second law of thermodynamics introduces the concept of:

Q19. Under which conditions will the value of ΔG always be negative?

Q20. Which of these is the correct relation between ΔG, ΔG°, and reaction quotient Q?

Congratulations! You answered all questions correctly!

What is the Chemistry Chemical Thermodynamics Mock Test for NEET?

A Chemistry Chemical Thermodynamics Mock Test for NEET is a practice tool designed to evaluate your understanding of thermodynamic principles from the NEET syllabus. This mock test contains 20 carefully curated questions based on topics such as laws of thermodynamics, enthalpy, entropy, Gibbs energy, and spontaneity.


With topics strictly aligned to NCERT, this test helps students experience the real exam atmosphere. Attempting this mock test improves your familiarity with NEET question patterns and marking schemes.


How Chemistry Chemical Thermodynamics Mock Tests Help NEET Aspirants

Mock tests are crucial for mastering chemical thermodynamics concepts. By regularly solving topic-wise NEET mock tests, you reinforce your understanding and boost recall. These tests encourage logical thinking and conceptual clarity essential for NEET 2026.


Practicing with timed tests sharpens your speed and accuracy, helping you with better time management for the actual exam. They also help you evaluate your strengths and weak areas so you can focus your revision where it's most needed.


For more in-depth preparation, check out our NEET course page and enhance your conceptual foundation with guided learning.


Chemistry Chemical Thermodynamics Topic-wise Mock Test Coverage

SubjectTopics CoveredNo. of Questions
Chemistry Thermodynamic Terms, System & Surroundings 4
Chemistry First Law of Thermodynamics, Internal Energy, Work & Heat 5
Chemistry Enthalpy, Hess's Law, Enthalpy of Reactions 4
Chemistry Second Law, Entropy, Spontaneity, Gibbs Free Energy 5
Chemistry NCERT Thermodynamics Numericals & Applications 2

How to Take the Chemistry Chemical Thermodynamics NEET Mock Test

Taking the Chemistry Chemical Thermodynamics mock test is simple and intuitive. First, open the mock test page and read the instructions. Click on the “Start the Mock Test” button to begin. Answer all 20 questions within the 20-minute timer and submit at the end, or let it auto-submit if time runs out.


After submission, you’ll instantly see your score, your correct and incorrect answers, and the right answers for any skipped questions. This helps you understand where to focus your revision.


Why Choose Vedantu's Chemistry Chemical Thermodynamics NEET Mock Test?

Vedantu’s Chemistry Chemical Thermodynamics Mock Test is crafted according to the official NEET pattern. It covers all important NCERT topics, providing quality practice aligned with real exam standards.


You benefit from accurate NEET marking (+4, –1), instant scoring, detailed answer highlighting, and a seamless cartoon-style interface. Identify your strengths, fix learning gaps, and improve your performance in every attempt!


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1NEET Notification
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5NEET Registration
6NEET Admit Card
7NEET Exam Centers
8NEET Exam Date
9NEET Answer Key
10NEET Results
11NEET Counselling

FAQs on Chemistry Chemical Thermodynamics Mock Test 3 for NEET Students

1. What is chemical thermodynamics in NEET Chemistry?

Chemical thermodynamics is the scientific study of energy changes, especially heat and work, during chemical reactions and physical transformations. In NEET Chemistry, this topic covers key areas such as:

  • Laws of thermodynamics (first, second, and third laws)
  • Enthalpy, entropy, and Gibbs free energy concepts
  • Calculating energy changes in chemical processes
  • Understanding spontaneity and equilibrium

Mastery of these concepts is essential for scoring well in chemistry exams and understanding real-life chemical applications.

2. How can I prepare a speech on Chemical Thermodynamics for exams?

To prepare a strong speech on Chemical Thermodynamics for exams, follow these steps:

  • Start with a clear definition of thermodynamics
  • Explain the key laws and their importance
  • Share examples of energy transfer in daily life and chemistry
  • Mention the relevance for NEET or school exams
  • Conclude with tips on mastering the topic for success

Structure your speech in logical sections and use simple language to engage your audience.

3. What are the main points for an essay on thermodynamics?

A well-written essay on thermodynamics for NEET or school should include these main points:

  • Introduction to the concept of thermodynamics
  • Explanation of the major laws (first, second, and third)
  • Application of these laws in chemistry and daily life
  • Calculation of enthalpy, entropy, and Gibbs free energy
  • Importance of thermodynamics in NEET and scientific research
  • Conclusion with relevance to students and career pathways

4. How important is Chemical Thermodynamics in NEET preparation?

Chemical Thermodynamics is a critical topic in NEET preparation, forming the basis for many exam questions. Its importance includes:

  • Multiple-choice questions test basic laws and calculations
  • Understanding thermodynamics supports other chemistry topics
  • High weightage in the NEET Chemistry syllabus
  • Improves logical reasoning and application skills

Mastering this topic can greatly improve overall exam performance.

5. Can you provide a short sample essay on Chemical Thermodynamics?

Here is a brief sample essay on Chemical Thermodynamics for students:

Chemical thermodynamics explains the heat and energy changes that occur during chemical reactions. The main laws of thermodynamics guide us in understanding phenomena such as heat flow, energy conservation, and the direction of reactions. Mastery of enthalpy, entropy, and Gibbs free energy is important for NEET. Studying this topic not only strengthens exam performance but also provides insight into everyday energy changes. Thus, understanding thermodynamics is vital for all aspiring science students.

6. What are common mistakes to avoid in NEET chemistry speeches?

Common mistakes in NEET chemistry speeches include:

  • Using technical terms without explanation
  • Missing key laws or forgetting to mention their significance
  • Writing or speaking too generally without examples
  • Ignoring the exam relevance of the topic
  • Exceeding or not meeting word limits

Stay concise, focused, and always cover the main concepts with clear examples and good structure.

7. What are the main topics in chemical thermodynamics for NEET?

The main topics in chemical thermodynamics for NEET include:

  • First, Second, and Third Laws of Thermodynamics
  • State functions: enthalpy, entropy, and free energy
  • Spontaneity of reactions and equilibrium
  • Heat, work, and internal energy calculations
  • Applications of thermodynamic concepts in chemical reactions

8. How to write an essay on thermodynamics for NEET preparation?

Begin your essay with an introduction to thermodynamics and its role in chemistry. Then:

  • State and briefly explain each law
  • Discuss concepts like enthalpy, entropy, and Gibbs free energy
  • Relate to NEET exam questions and their application
  • Add relevant examples to illustrate points
  • Finish with the importance of the topic for exam success

9. Why is thermodynamics important in chemistry?

Thermodynamics is essential in chemistry because it helps explain how and why reactions occur, predicts the direction of chemical processes, and ensures energy is managed efficiently. Its relevance includes:

  • Guiding the design of experiments and chemical production
  • Predicting reaction spontaneity and equilibrium
  • Enabling calculation of energy changes for safety and efficiency

10. What tips help score well on the NEET chemistry mock test?

To score well on the NEET chemistry mock test, follow these tips:

  • Revise all major concepts and laws thoroughly
  • Practice previous years' questions and mock tests
  • Focus on time management during the exam
  • Clarify doubts with teachers or study groups
  • Use diagrams, tables, and mnemonics for quick revision