NEET Physics: Behaviour of Perfect Gas and Kinetic Theory — MCQ Test 12

Q6. A gas has a \(C_v\) of \(12.5 \, \text{J mol}^{-1} \text{K}^{-1}\). What is the ratio of specific heats (\(\gamma\))? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

Q7. The rms speed of nitrogen molecules is 516 m/s at 300 K. What is the rms speed of argon molecules at the same temperature? (Molecular mass: \(N_2 = 28 \, \text{u}\), Ar = 39.9 u)

Q8. What is the total internal energy of 1.5 moles of a monatomic gas at 250 K? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

Q9. A gas occupies 28.0 litres at STP. How many moles are present? (Molar volume at STP = 22.4 litres)

Q10. The mean free path of a gas molecule is \(2 \times 10^{-7} \, \text{m}\) at a certain pressure. If the pressure is doubled, what is the new mean free path? (Assume constant temperature)

NEET PhysicsBehaviour of Perfect Gas and Kinetic Theory

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At what temperature is the rms speed of oxygen molecules 600 m/s? (Molecular mass of \(O_2 = 32 \, \text{u}\), \(k_B = 1.38 \times 10^{-23} \, \text{J K}^{-1}\))

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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, Molecules, Molecular, Container, Pressure, and Contains.

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. At what temperature is the rms speed of oxygen molecules 600 m/s? (Molecular mass of \(O_2 = 32 \, \text{u}\), \(k_B = 1.38 \times 10^{-23} \, \text{J K}^{-1}\))

  • A. 350 K
  • B. 463 K
  • C. 550 K
  • D. 650 K

Q2. A container holds 0.5 moles of an ideal gas at 2 atm pressure and 27°C. What is the volume of the gas? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

  • A. 5.0 litres
  • B. 6.2 litres
  • C. 7.5 litres
  • D. 8.3 litres

Q3. A mixture of 1 mole of neon and 2 moles of argon is at 500 K in a 30-litre container. What is the total pressure? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

  • A. 3.00 atm
  • B. 4.16 atm
  • C. 5.00 atm
  • D. 6.00 atm

Q4. A vessel contains helium gas at 27°C with a pressure of 2 atm. If the temperature increases to 127°C at constant volume, what is the final pressure?

  • A. 2.33 atm
  • B. 2.50 atm
  • C. 2.67 atm
  • D. 3.00 atm

Q5. What is the pressure of 0.25 moles of an ideal gas in a 5-litre container at 227°C? (\(R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1}\))

  • A. 1.50 atm
  • B. 2.08 atm
  • C. 2.50 atm
  • D. 3.00 atm

+ 5 more questions in the actual test

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