NEET Physics: Thermodynamics — MCQ Test 24

Q6. A gas at \( 11 \, \text{atm} \) and \( 90^\circ \text{C} \) in a \( 10 \, \text{L} \) container is cooled isochorically to \( 30^\circ \text{C} \). What is the final pressure?

Q7. In an adiabatic process, what compensates for the absence of heat transfer?

Q8. A system absorbs \( 730 \, \text{J} \) of heat and performs \( 190 \, \text{J} \) of work. What is the change in internal energy?

Q9. A gas at \( 10 \, \text{atm} \) and \( 80^\circ \text{C} \) in a \( 8 \, \text{L} \) container is heated isochorically to \( 140^\circ \text{C} \). What is the final pressure?

Q10. A gas undergoes an adiabatic expansion from \( 28 \, \text{L} \) to \( 84 \, \text{L} \), reducing its pressure from \( 15 \, \text{atm} \) to \( 3 \, \text{atm} \). What is the value of \( \gamma \)?

NEET Physics — Thermodynamics

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In an isobaric process, \( 1.1 \, \text{moles} \) of an ideal gas expand from \( 7 \, \text{L} \) to \( 14 \, \text{L} \) at \( 390 \, \text{K} \). What is the work done by the gas? (\( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \))

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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 Isobaric, Supplied, Following, Statements, Reversible, and Monatomic.

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. In an isobaric process, \( 1.1 \, \text{moles} \) of an ideal gas expand from \( 7 \, \text{L} \) to \( 14 \, \text{L} \) at \( 390 \, \text{K} \). What is the work done by the gas? (\( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \))

  • A. 3400 J
  • B. 3561 J
  • C. 3700 J
  • D. 3900 J

Q2. In an isobaric process, \( 0.5 \, \text{moles} \) of gas expand from \( 300 \, \text{K} \) to \( 450 \, \text{K} \). What is the heat supplied if \( C_p = 29.1 \, \text{J mol}^{-1} \text{K}^{-1} \)?

  • A. 2000 J
  • B. 2183 J
  • C. 2300 J
  • D. 2500 J

Q3. Which of the following statements is correct about a reversible process?

  • A. It involves rapid changes
  • B. It always increases internal energy
  • C. It requires friction
  • D. It restores original states of system and surroundings

Q4. A monatomic ideal gas undergoes an adiabatic expansion, reducing its temperature from \( 400 \, \text{K} \) to \( 300 \, \text{K} \). How much work is done by the gas if \( \mu = 1 \, \text{mole} \) and \( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \)? (\( \gamma = 1.67 \))

  • A. 1000 J
  • B. 1239 J
  • C. 1500 J
  • D. 2000 J

Q5. How many calories are equivalent to \( 1674 \, \text{J} \) of heat? (1 cal = \( 4.186 \, \text{J} \))

  • A. 350 cal
  • B. 400 cal
  • C. 450 cal
  • D. 500 cal

+ 5 more questions in the actual test

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