What is the process by which a gas changes its state to become a liquid?

1 Answer
Nov 27, 2016

Answer:

#"Condensation"# describes the phase transition: #"gas "rarr" liquid"#

Explanation:

And thus #"steam"#, #"water vapour"#, condenses to liquid water:

#H_2O(g) rarr H_2O(l) + Delta#

The process as written is exothermic, and of course the condensation reaction can be used to drive a steam engine.