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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Medium

A system in a cyclic process performs 300 J300 \, \text{J} of work and rejects 200 J200 \, \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 J300 \, \text{J} of work and rejects 200 J200 \, \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 L8 \, \text{L} to 2 L2 \, \text{L} at 350 K350 \, \text{K} with 0.2 moles0.2 \, \text{moles}. What is the heat released? (R=8.3 J mol−1K−1R = 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 J mol−1K−1R = 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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