NEET Physics: Thermodynamics — MCQ Test 16

Q6. A system releases \( 870 \, \text{J} \) of heat and performs \( 330 \, \text{J} \) of work. What is the change in internal energy?

Q7. What is the molar specific heat capacity at constant volume for a diatomic gas if \( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \)?

Q8. 0.15 moles of an ideal gas at 320 K expand isothermally from 3 L to 9 L. What is the work done by the gas? (\( R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1} \))

Q9. What is the physical significance of the equation of state in thermodynamics?

Q10. A gas expands adiabatically from \( 2 \, \text{atm} \) and \( 4 \, \text{L} \) to \( 1 \, \text{atm} \). What is the final volume? (\( \gamma = 1.33 \))

NEET Physics — Thermodynamics

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A system releases \( 760 \, \text{J} \) of heat and performs \( 240 \, \text{J} \) of work. What is the change in internal energy?

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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 Releases, Performs, Internal, Adiabatically, Deviates, and Equation.

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 releases \( 760 \, \text{J} \) of heat and performs \( 240 \, \text{J} \) of work. What is the change in internal energy?

  • A. -1100 J
  • B. -1000 J
  • C. -900 J
  • D. -800 J

Q2. A gas expands adiabatically from \( 10 \, \text{atm} \) and \( 5 \, \text{L} \) to \( 2 \, \text{atm} \). What is the final volume? (\( \gamma = 1.33 \))

  • A. 12 L
  • B. 14.5 L
  • C. 16 L
  • D. 18 L

Q3. What is the primary reason a real gas deviates from the ideal gas equation?

  • A. Constant temperature
  • B. Intermolecular forces
  • C. Lack of pressure
  • D. No volume change

Q4. How many calories are equivalent to \( 4186 \, \text{J} \) of heat? (1 cal = \( 4.186 \, \text{J} \))

  • A. 500 cal
  • B. 750 cal
  • C. 1000 cal
  • D. 1250 cal

Q5. What is the change in internal energy for \( 0.6 \, \text{moles} \) of an ideal gas heated from \( 270 \, \text{K} \) to \( 320 \, \text{K} \) at constant volume? (\( C_v = 20.8 \, \text{J mol}^{-1} \text{K}^{-1} \))

  • A. 580 J
  • B. 624 J
  • C. 650 J
  • D. 700 J

+ 5 more questions in the actual test

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