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AIIMS 201826 May
Exam
AIIMS
Year
2018
Date
26 May
Subject
Chemistry
Chapter
States of Matter

AIIMS 2018 · 26 May · Chemistry · States of Matter

Assertion : Greater the value of van der Waals' constant ' a '...

Assertion : Greater the value of van der Waals' constant ' aa ' greater is the liquefaction of gas. Reason : ' aa ' indirectly measures the magnitude of attractive forces between the molecules.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

Considering the attractive force pressure, the ideal gas equation (PV=nRT)(P V=n R T) is corrected by introducing a factor of an2V2\frac{a n^2}{V^2} where aa is van der Waals constant.
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