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NEET 2018
Exam
NEET
Year
2018
Subject
Chemistry
Chapter
States of Matter

NEET 2018 · Chemistry · States of Matter

The correction factor 'a' to the ideal gas equation corresponds to...

The correction factor 'a' to the ideal gas equation corresponds to which of the following?

Options

  1. AElectric field present between the gas molecules.
  2. BVolume of the gas molecules.
  3. CDensity of the gas molecules.
  4. DForce of attraction between the gas molecules.

Correct answer

D. Force of attraction between the gas molecules.

Step-by-step solution

Vanderwal constant (a)∝\left(a\right) ∝ forces of attraction.

The constants a and b are called van der Waals constants. They have positive values and are characteristic of the individual gas. If a gas behaves ideally, both a and b are zero, and van der Waals equations approaches the ideal gas law PV=nRT. The constant a provides a correction for the intermolecular forces.

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