- #1

Hercuflea

- 596

- 49

## Homework Statement

So my thermo professor has been putting a huge emphasis on phase diagrams, which I didn't really expect. He basically skips most of the analytical/calculus type problems and gives us the graphical phase diagram/ "real world" type of problems for homework. I don't understand phase diagrams because they never put any labels on the axes, and it is just like a little parabola and then he draws two horizontal lines through it, but nothing is labeled.

So here's the problem :

For H2O, determine the specific property at the indicated state. Locate the state on a sketch of the T-V diagram.

a) p = 300 kPa, v (specific volume) = .5 m^3/kg Find T, in Celsius.

## Homework Equations

PV^n = k, k is a constant

## The Attempt at a Solution

I have a table where I can look up these things but it says that water at 300 kPa (3 bar) is supposed to be .6058 m^3/kg not .5 m^3/kh. So I guess the water in this problem is not saturated and I can't use my table? How can I tell?

And once I find the temperature how do I draw the diagram?