The normal melting and boiling point of O2 are -218C and 49.8atm. a)Sketch the phase diagram for O2. b) Which is denser, O2(S) or O2 (l)? explain.

Answer 1

49.8 atm is not a boiling point. It is a pressure (50.4 atm is what is called the critical pressure of O2; that may be what you meant to write). The boiling point of O2 is -183 C

Answer 2

http://www.fileden.com/files/2006/8/29/193519/PD%20of%20O2.jpg

shows you the phase diagram of O2

Answer 3

thanks, i typed it wrong

Answer 4

Is it O2(S) is denser right? Because it's solid