Question

What is the critical temperature of carbon dioxide?

Answer 1

1. Definition of critical temperature: The temperature above which the gases cannot be liquefied but at high pressure. it can be liquefied. This temperature is called critical temperature.
2. Critical temperature of carbon dioxide: The critical temperature of carbon dioxide (CO$2$) is 304.15 K and its critical pressure is 73.9 atm. This means that carbon dioxide cannot be liquefied above 304.15 K temperature.

Final answer: Critical temperature of carbon dioxide is 304.15 K.