How do convert argon to liquid argon?

Answer:
Compression.


Argon is turn to liquid by compression and removing heat. Typically this is done through refrigeration using liquid nitrogen. Most liquid argon is produced in a plant that makes liquid O2,N2 and Ar. It is the rarest of the 3.
First answer by Rob305786. Last edit by Dave 1248. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 2 [recommend question].