NEET Physics: Thermodynamics — MCQ Test 5

Q6. Which of the following correctly describes the concept of heat?

Q7. A system absorbs \( 450 \, \text{J} \) of heat and performs \( 150 \, \text{J} \) of work. What is the change in internal energy?

Q8. What does the Clausius statement of the Second Law imply?

Q9. Why does the First Law of Thermodynamics allow some processes that the Second Law prohibits?

Q10. What is the change in internal energy for \( 0.5 \, \text{moles} \) of an ideal gas heated from \( 260 \, \text{K} \) to \( 310 \, \text{K} \) at constant volume? (\( C_v = 20.8 \, \text{J mol}^{-1} \text{K}^{-1} \))

NEET Physics — Thermodynamics

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Which condition is essential for a process to be considered reversible?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Thermodynamics. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Condition, Essential, Considered, Reversible, Internal, and Constant.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which condition is essential for a process to be considered reversible?

  • A. Rapid temperature changes
  • B. Presence of friction
  • C. No dissipative effects
  • D. Constant volume

Q2. What is the change in internal energy for \( 0.4 \, \text{moles} \) of an ideal gas heated from \( 290 \, \text{K} \) to \( 330 \, \text{K} \) at constant volume? (\( C_v = 20.8 \, \text{J mol}^{-1} \text{K}^{-1} \))

  • A. 300 J
  • B. 333 J
  • C. 350 J
  • D. 400 J

Q3. A system absorbs \( 500 \, \text{J} \) of heat and does \( 200 \, \text{J} \) of work. What is the change in its internal energy?

  • A. 200 J
  • B. 300 J
  • C. 400 J
  • D. 500 J

Q4. An ideal gas expands isothermally at \( 570 \, \text{K} \) from \( 12 \, \text{L} \) to \( 36 \, \text{L} \) with \( 0.4 \, \text{moles} \). What is the work done by the gas? (\( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \))

  • A. 1900 J
  • B. 2079 J
  • C. 2200 J
  • D. 2300 J

Q5. Which property of an ideal gas simplifies its internal energy calculation?

  • A. Constant pressure
  • B. Negligible intermolecular forces
  • C. Fixed volume
  • D. High density

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