It is observed that H(2) and He gases al...

It is observed that `H_(2)` and `He` gases always show positive deviation from ideal behaviour i.e. `Zgt1`. 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 `(a)/(V^(2))` is negligible

C

the value of 'b' is very large due to large size of the moecules

D

both 'a' and 'b' are very small and negligible

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The correct Answer is:

B

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