what happens to water at 100 degrees celsius as pressure is increased fro 0.8 atm to 1.2 atm?

2 answers

You're question is quite general. What do you mean by "what happens" to water. Well, it stays as H2O, it doesn't decompose, liquid water is almost incompressible, etc. You need to clarify the question.
It goes from the gas phase to liquid phase. Water vapor to liquid water. - apex