Critical temperatures of ammonia and carbon dioxide are 405.5 K and 304.1 K respectively. Which of these gases will liquify first when you start cooling from 500K to their critical temperature?

Critical temperatures of ammonia and carbon dioxide are 405.5 K and 30

1.	Critical temperatures of ammonia and carbon dioxide are 405.5 K and 304.1 K respectively. Which of these gases will liquify first when you start cooling from 500K to their critical temperature?
Answer» SOLUTION :Ammonia will liquify first because its critical TEMPERATURE will be REACHED first. Liquifaction of `CO_2` will REQUIRE more COOLING.