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Question: Answered & Verified by Expert
The statement that is NOT correct is
Chemistryp Block Elements (Group 15, 16, 17 & 18)KCETKCET 2014
Options:
  • A Van der Waals constant 'a' measures extent of intermolecular attractive forces for real
    gases.
  • B Boyle point depends on the nature of real gas,
  • C Compressibility factor measures the deviation of real gas from ideal behaviour.
  • D Critical temperature is the lowest temperature at which liquefaction of a gas first occurs.
Solution:
1938 Upvotes Verified Answer
The correct answer is: Critical temperature is the lowest temperature at which liquefaction of a gas first occurs.
Critical temperature is not the lowest temperature at which liquefaction of a gas first occurs. The critical temperature of a
substance is the temperature at and above which vapor of the substance cannot be liquefied no matter how much
pressure is applied. Therefore, statement (4) is incorrect.

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