NEET Physics: Thermodynamics — MCQ Test 23

Q6. How much heat is required to raise the temperature of \( 0.25 \, \text{kg} \) of tungsten from \( 15^\circ \text{C} \) to \( 45^\circ \text{C} \)? (Specific heat of tungsten = \( 134.4 \, \text{J kg}^{-1} \text{K}^{-1} \))

Q7. How many joules are equivalent to \( 350 \, \text{cal} \) of heat? (1 cal = \( 4.186 \, \text{J} \))

Q8. A monatomic gas undergoes an adiabatic expansion from \( 720 \, \text{K} \) to \( 360 \, \text{K} \) with \( 1.5 \, \text{moles} \). What is the work done? (\( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \), \( \gamma = 1.67 \))

Q9. Which of the following statements is incorrect about isothermal processes?

Q10. A gas is compressed adiabatically from \( 20 \, \text{L} \) to \( 5 \, \text{L} \), increasing its pressure from \( 3 \, \text{atm} \) to \( 12 \, \text{atm} \). What is \( \gamma \)?

NEET Physics — Thermodynamics

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A system in a cyclic process performs \( 300 \, \text{J} \) of work and rejects \( 200 \, \text{J} \) of heat. What is the heat absorbed?

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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 Performs, Absorbed, Variable, Classified, Extensive, and Thermodynamic.

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. A system in a cyclic process performs \( 300 \, \text{J} \) of work and rejects \( 200 \, \text{J} \) of heat. What is the heat absorbed?

  • A. 400 J
  • B. 500 J
  • C. 600 J
  • D. 700 J

Q2. Which variable is classified as an extensive thermodynamic state variable?

  • A. Pressure
  • B. Temperature
  • C. Volume
  • D. Density

Q3. A gas undergoes an isothermal compression from \( 8 \, \text{L} \) to \( 2 \, \text{L} \) at \( 350 \, \text{K} \) with \( 0.2 \, \text{moles} \). What is the heat released? (\( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \))

  • A. -900 J
  • B. -805 J
  • C. -700 J
  • D. -600 J

Q4. What is the molar specific heat capacity at constant volume for a diatomic gas if \( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \)?

  • A. 16.6 J mol⁻¹ K⁻¹
  • B. 20.75 J mol⁻¹ K⁻¹
  • C. 25.0 J mol⁻¹ K⁻¹
  • D. 29.1 J mol⁻¹ K⁻¹

Q5. Which factor primarily causes irreversibility in a process involving friction?

  • A. Temperature equality
  • B. Energy dissipation
  • C. Constant pressure
  • D. No volume change

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