Physical state given the critical temperature and critical pressure

[A13235378]

Summary:: I have two substances H2O and CH3OH given at a temperature T and pressure P.

I also have critical temperatures and pressures.

How can I find the physical states of these substances.

My teacher recommended me to use the Antoine equation and find the saturation pressure, but I can't see how it can help me. I tried it on a phase diagram, but I couldn't find one that would provide the right scale. I can't find exactly where the point is.

 

[DrClaude]

You will have to provide a more complete description of the problem you are trying to solve.

 

[Chestermiller]

Summary:: I have two substances H2O and CH3OH given at a temperature T and pressure P.

I also have critical temperatures and pressures.

How can I find the physical states of these substances.

My teacher recommended me to use the Antoine equation and find the saturation pressure, but I can't see how it can help me. I tried it on a phase diagram, but I couldn't find one that would provide the right scale. I can't find exactly where the point is.

Have your graphics package plot the pressure on a log scale.