Published by:
CGP EDU Academic Team
Published on: August 14, 2026
It is observed that 
and He gases always show positive deviation from ideal behavior i.e., z > 1. This is because.
A
The value of a is very large due to high attractive forces
B
The weak intermolecular forces of attraction due to which a is very small and 
is negligible
is negligible
C
The value of b is very large due to large size of the molecules
D
Both a and b are very and proportional to
Text Solution
Verified by ExpertsThe correct answer is:
B
: Due to weak intermolecular forces of attraction, 
and He gases show the value of Z > 1.
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