NEET Physics: Behaviour of Perfect Gas and Kinetic Theory — MCQ Test 9

Q6. At what temperature is the rms speed of argon molecules 860 m/s? (Atomic mass of Ar = 39.9 u, \(k_B = 1.38 \times 10^{-23} \, \text{J K}^{-1}\))

Q7. How much heat is required to raise the temperature of 0.3 moles of a triatomic gas by 15 K at constant volume, ignoring vibrational modes? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

Q8. What is the average translational kinetic energy of a nitrogen molecule at 1000 K? (\(k_B = 1.38 \times 10^{-23} \, \text{J K}^{-1}\))

Q9. A gas mixture contains 8 g of helium and 64 g of oxygen. What is the ratio of their partial pressures?

Q10. A mixture of 0.3 moles of nitrogen and 0.7 moles of argon is at 350 K in a 20-litre container. What is the total pressure? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

NEET Physics — Behaviour of Perfect Gas and Kinetic Theory

Free MCQ Test 9 of 19

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A gas at 2.5 atm and 500 K has a volume of 12 litres. If the pressure increases to 5 atm at constant temperature, what is the new volume?

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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 Pressure, Increases, Constant, Temperature, Contains, and Hydrogen.

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 gas at 2.5 atm and 500 K has a volume of 12 litres. If the pressure increases to 5 atm at constant temperature, what is the new volume?

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

Q2. A gas mixture contains 16 g of oxygen and 4 g of hydrogen. What is the ratio of their partial pressures?

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

Q3. How much heat is required to raise the temperature of 0.15 moles of a triatomic gas by 25 K at constant volume, with no vibrational modes? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

  • A. 62.3 J
  • B. 93.5 J
  • C. 124.7 J
  • D. 155.8 J

Q4. A monatomic gas has a molar specific heat at constant pressure of \(20.8 \, \text{J mol}^{-1} \text{K}^{-1}\). What is the value of \(C_v\)?

  • A. 12.5 J mol⁻¹ K⁻¹
  • B. 16.6 J mol⁻¹ K⁻¹
  • C. 20.8 J mol⁻¹ K⁻¹
  • D. 25.0 J mol⁻¹ K⁻¹

Q5. A gas mixture has equal volumes of helium and argon at the same temperature and pressure. What is the ratio of their rms speeds? (Atomic mass: He = 4 u, Ar = 39.9 u)

  • A. 1:3.16
  • B. 1:1
  • C. 3.16:1
  • D. 10:1

+ 5 more questions in the actual test

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