Question

Real gases tend to show maximum deviation from real gas behaviour at :- (1) high temp and high pressure (2) low temp and low pressure (3) high temp and low pressure (4) low temp and high pressure

Answer 1

The behavior of real gases deviate from real gas behavior at low temperatures and high pressures. This because at low temperatures and high pressures the intermolecular forces between the particles of the gases become remarkably significant as compared to the kinetic energy of the individual particles and the volume of the container in which it's in.  On the other hand, at high temperatures and low pressures the behavior of real gases is more in line with the ideal gas law and equation. This is because the intermolecular forces compared to the kinetic energy of the particles is quite negligible. 

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