NEET Physics: Thermodynamics — MCQ Test 15

Q6. A gas undergoes an adiabatic compression from \( 18 \, \text{L} \) to \( 6 \, \text{L} \), increasing its pressure from \( 4 \, \text{atm} \) to \( 12 \, \text{atm} \). What is the value of \( \gamma \)?

Q7. How much heat is required to raise the temperature of \( 0.4 \, \text{kg} \) of tungsten from \( 40^\circ \text{C} \) to \( 70^\circ \text{C} \)? (Specific heat of tungsten = \( 134.4 \, \text{J kg}^{-1} \text{K}^{-1} \))

Q8. Which of the following correctly describes the First Law of Thermodynamics?

Q9. In an isobaric process, \( 0.6 \, \text{moles} \) of gas expand from \( 400 \, \text{K} \) to \( 480 \, \text{K} \). What is the heat supplied if \( C_p = 25.0 \, \text{J mol}^{-1} \text{K}^{-1} \)?

Q10. What is the significance of the \( P-V \) relationship in an adiabatic process for an ideal gas?

NEET Physics — Thermodynamics

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In an isobaric process, \( 1.5 \, \text{moles} \) of an ideal gas expand from \( 5 \, \text{L} \) to \( 15 \, \text{L} \) at \( 300 \, \text{K} \). 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, Following, Statements, Incorrect, Thermodynamics, and Specific.

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, \( 1.5 \, \text{moles} \) of an ideal gas expand from \( 5 \, \text{L} \) to \( 15 \, \text{L} \) at \( 300 \, \text{K} \). What is the work done by the gas? (\( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \))

  • A. 3735 J
  • B. 7470 J
  • C. 8000 J
  • D. 9000 J

Q2. Which of the following statements is incorrect about work in thermodynamics?

  • A. It is path-dependent
  • B. It involves mechanical energy transfer
  • C. It requires a temperature difference
  • D. It can change internal energy

Q3. Why does the specific heat capacity of a gas differ at constant pressure and constant volume?

  • A. Due to temperature differences
  • B. Work is done only at constant volume
  • C. Work is done at constant pressure
  • D. Internal energy decreases at constant pressure

Q4. In a thermodynamic process, what indicates that a variable is not in equilibrium?

  • A. Constant pressure
  • B. Uniform temperature
  • C. Change with time
  • D. Fixed volume

Q5. A gas expands adiabatically from \( 8 \, \text{atm} \) and \( 16 \, \text{L} \) to \( 2 \, \text{atm} \). What is the final volume? (\( \gamma = 1.5 \))

  • A. 36 L
  • B. 40.3 L
  • C. 44 L
  • D. 48 L

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