A unknown substance has a normal melting point of 28 degrees C, a normal boiling point of 220 degree C, a critical temperature of 800 degrees C, and a critical pressure of 400 atm. Its triple point is a 45 degree C and 0.05 atm.
a.) Draw a phase diagram labeling all the above points. Also label the melting point curve, the boiling point curve, and the solid, liquid, and gas regions.
b.) Does the solid or liquid have higher density? Explain your answer.