Asked by araima2001 | 19th Dec, 2016, 12:35: PM

Expert Answer:

When Vreal < Videal, the attractive forces are more significant than the repulsive forces. So the gas can be liquefied easily. Usually the Z < 1 for gases like NH3, CO2, SO2 etc. So option 'C' is correct option.

Answered by Arvind Diwale | 20th Dec, 2016, 03:05: PM