NEET Physics: Thermodynamics — MCQ Test 8

Q6. What thermodynamic property ensures that \( \Delta U \) is zero in a cyclic process?

Q7. A system in a cyclic process absorbs \( 780 \, \text{J} \) of heat and rejects \( 300 \, \text{J} \). What is the net work done?

Q8. A system releases 500 J of heat and has 200 J of work done on it. What is the change in internal energy?

Q9. How much heat is required to raise the temperature of \( 0.35 \, \text{kg} \) of copper from \( 15^\circ \text{C} \) to \( 45^\circ \text{C} \)? (Specific heat of copper = \( 386.4 \, \text{J kg}^{-1} \text{K}^{-1} \))

Q10. In an isobaric process, \( 1 \, \text{mole} \) of an ideal gas expands from \( 8 \, \text{L} \) to \( 16 \, \text{L} \) at \( 360 \, \text{K} \). What is the work done by the gas? (\( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \))

NEET Physics — Thermodynamics

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Which law of thermodynamics introduces the concept of temperature as a physical quantity that is equal for systems in thermal equilibrium with a third system?

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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 Thermodynamics, Introduces, Temperature, Physical, Quantity, and Equilibrium.

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 law of thermodynamics introduces the concept of temperature as a physical quantity that is equal for systems in thermal equilibrium with a third system?

  • A. First Law
  • B. Second Law
  • C. Zeroth Law
  • D. Third Law

Q2. How much heat is required to raise the temperature of \( 0.6 \, \text{kg} \) of copper from \( 20^\circ \text{C} \) to \( 50^\circ \text{C} \)? (Specific heat of copper = \( 386.4 \, \text{J kg}^{-1} \text{K}^{-1} \))

  • A. 6700 J
  • B. 6955 J
  • C. 7100 J
  • D. 7300 J

Q3. Which of the following statements is incorrect about reversible processes?

  • A. They are quasi-static
  • B. They lack dissipative effects
  • C. They are common in nature
  • D. They can be reversed fully

Q4. 0.25 kg of a substance at 30°C absorbs 1500 J of heat, reaching 60°C. What is its specific heat capacity?

  • A. 150 J kg⁻¹ K⁻¹
  • B. 200 J kg⁻¹ K⁻¹
  • C. 250 J kg⁻¹ K⁻¹
  • D. 300 J kg⁻¹ K⁻¹

Q5. What is the change in internal energy for \( 0.3 \, \text{moles} \) of an ideal gas heated from \( 280 \, \text{K} \) to \( 340 \, \text{K} \) at constant volume? (\( C_v = 20.8 \, \text{J mol}^{-1} \text{K}^{-1} \))

  • A. 350 J
  • B. 374 J
  • C. 400 J
  • D. 450 J

+ 5 more questions in the actual test

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