Question

What property of molecules of real gases is indicated by van der Waal’s constant ‘a’?​

Answer 1

Answer:

A measure of the magnitude of the attractive forces present between the molecules of gases!!

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Answer 2

Answer:

$\huge \dag \sf{Answer \: is}$

a' in the vander waals equation is a measure of the magnitude of the attractive forces present between the molecules of gases. The greater is the intermolecular forces, greater will the value of a. Hence 'a' defines the extent of forces of attraction and repulsion between the molecules of gases.