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Question 850009
JEE Chemistry · Hard

States of Matter and Gaseous State: Compressibility factor MCQ

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Compressibility factorHardQuestion 850009

Question

For an ideal gas, the compressibility factor Z (= PV/nRT) is:
  1. A
    1
    Correct
  2. B
    0
  3. C
    >1 always
  4. D
    <1 always

Correct answer

1

Explanation

Z = PV/nRT = 1 for ideal gas (by definition). For real gases: Z < 1 at moderate pressures (attractive forces dominate), Z > 1 at very high pressures (repulsive forces dominate, b term dominates).

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