JEE Advanced Chemistry: States of Matter Practice Questions

10 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

  1. Q1.
    At what temperature does the root mean square speed of oxygen gas molecules become double its value at 27 degrees Celsius?
    Easy
  2. Q2.
    Which of the following conditions represents the state of a real gas approaching ideal behavior?
    Easy
  3. Q3.
    What is the compressibility factor Z for an ideal gas?
    Easy
  4. Q4.
    For a real gas, the van der Waals constant 'a' represents the magnitude of intermolecular forces. Which of the following gases has the highest value of 'a'?
    Medium
  5. Q5.
    A gas follows the equation of state P(V - nb) = nRT. At a temperature T, the compressibility factor Z is given by which expression?
    Medium
  6. Q6.
    The root mean square speed of an ideal gas at 300 K is 500 m/s. What is the root mean square speed at 1200 K?
    Medium
  7. Q7.
    Two flasks of equal volume are connected by a narrow tube of negligible volume. One flask contains 1 mole of H2 at 300 K and the other contains 1 mole of He at
    Medium
  8. Q8.
    Calculate the root mean square speed of oxygen gas at 300 K. Given R = 8.314 J/mol K and molar mass of O2 = 32 g/mol.
    Hard
  9. Q9.
    A mixture of 2 moles of He and 4 moles of O2 is at 1 atm pressure. What is the partial pressure of He?
    Hard
  10. Q10.
    A real gas obeys the equation of state P(V - nb) = nRT. Calculate the compressibility factor Z for this gas at high pressure.
    Hard

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