Deviation From Ideal Behaviour

Positive deviations from ideal behaviour take place because of :

What is an ideal gas? Why do the real gases show deviations from ideal behaviour? Show these deviations graphically.

What is an ideal gas? Why do the real gases show deviations from ideal behaviour?

Assertion: Helium shows only positive deviations from ideal behaviour. Reason: Helium is an inert gas.

Why are the deviations from ideal behaviour of CO_(2) and CH_(4) greater than those of H_(2) and He?

Assertion: Helium shows only positive deviations from ideal behaviour. Reason: Helium is an inert gas.

Assertion: Helium shows only positive deviations from ideal behaviour. Reason: Helium is an inert gas.

Why do the gases at low temperature and high pressure show large deviations from ideal behaviour ?

Assertion: Helium shows only positive deviations from ideal behaviour. Reason: Helium is an inert gas.