Looking for a word to describe the following

[Jdo300]

Hello All,

I was wondering if some of the great chemistry people here could help me with this one. I'm wondering if there is a word out there that describes the study of liquids and gasses in transformation? I know that could all be included under the term "Chemistry" but I'm wondering if there is a more specific branch of study that is focused on this aspect?

Thanks,
Jason O

 

[zhermes]

study of phase-transitions.