Question

2) The liquefaction behaviour of temporary gases like CO2 approaches that of N2, O2 (permanent

gases) as we go,

(a) below critical temperature (b) above critical temperature (c) below absolute zero

(d) above absolute zero​

Answer 1

Answer:

The liquefaction behaviour of temporary gases like CO2 approaches that of N2, O2  as we go above critical temperature.

so option b is correct

Answer 2

Explanation:

HI DEAR,

Liquification of gas occurs when the inter-molecular forces of attraction reach a point that they become capable to bind the gas molecules together to convert it into a liquid state.

The critical temperature on the other hand, is the measure to identify the strength of inter-molecular forces of attraction.

Temporary gases have strong inter-molecular forces and attractions. So, they can be easily liquified and hence, there critical temperature would be higher. Thus, above critical temperature, the liquification behavior of temporary gases approaches that of permanent gases.