NEET Physics: Behaviour of Perfect Gas and Kinetic Theory — MCQ Test 7

Q6. What is the average translational kinetic energy of an argon atom at 500 K? (\(k_B = 1.38 \times 10^{-23} \, \text{J K}^{-1}\))

Q7. How much heat is required to raise the temperature of 0.1 moles of a monatomic gas by 30 K at constant volume? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

Q8. A mixture of 2 moles of helium and 3 moles of nitrogen is at 400 K in a 50-litre container. What is the total pressure? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

Q9. A gas at 4 atm and 500 K has a volume of 20 litres. If the pressure increases to 8 atm at constant temperature, what is the new volume?

Q10. What is the ratio of \(C_p\) to \(C_v\) for a gas with 3 translational and 2 rotational degrees of freedom?

NEET Physics — Behaviour of Perfect Gas and Kinetic Theory

Free MCQ Test 7 of 19

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The rms speed of a gas is 300 m/s at 150 K. At what temperature will the rms speed be 600 m/s?

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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 Behaviour of Perfect Gas and Kinetic Theory. 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 Temperature, Pressure, Decreases, Constant, Internal, and Triatomic.

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. The rms speed of a gas is 300 m/s at 150 K. At what temperature will the rms speed be 600 m/s?

  • A. 300 K
  • B. 450 K
  • C. 600 K
  • D. 750 K

Q2. A gas at 2 atm and 400 K has a volume of 6 litres. If the pressure decreases to 1 atm at constant temperature, what is the new volume?

  • A. 3 litres
  • B. 6 litres
  • C. 9 litres
  • D. 12 litres

Q3. What is the total internal energy of 0.3 moles of a triatomic gas at 300 K with no vibrational modes? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

  • A. 1.87 kJ
  • B. 2.24 kJ
  • C. 2.49 kJ
  • D. 3.11 kJ

Q4. The mean free path of a gas is \(5 \times 10^{-7} \, \text{m}\) with a number density of \(2 \times 10^{25} \, \text{m}^{-3}\). What is the molecular diameter?

  • A. \(1.0 \times 10^{-10} \, \text{m}\)
  • B. \(1.5 \times 10^{-10} \, \text{m}\)
  • C. \(2.0 \times 10^{-10} \, \text{m}\)
  • D. \(2.5 \times 10^{-10} \, \text{m}\)

Q5. A gas mixture contains 4 g of helium and 16 g of oxygen. What is the ratio of their partial pressures?

  • A. 1:2
  • B. 2:1
  • C. 1:1
  • D. 4:1

+ 5 more questions in the actual test

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