Value of compression factor z for critical constants?

Mukesh Sharma
8 years ago

The extent of deviation of a real gas from ideal behaviour is studied using the term compressibility factor (Z).

Negative deviation - Z<1 (i.e . attraction dominates)

Positive deviation - Z>1 (i.e. replusion dominates)

The closer the gas is to its critical point or its boiling point, the more $Z$ deviates from the ideal case.

Thanks & Regards
Mukesh Sharma