KEAM 2017 Physics and Chemistry Paper

(i) ∵ For : ideal gas Z=1,pV=nRT
or ‌

pV

nRT

=1(Z)
For real gas Z≠1 i.e. P>0.
(ii) For ideal gas,
Temperature must be high and pressure must below i.e.
Pressure =0 (or negligible)
Temperature >0 (or high)