Homework Help: Chemistry(Please check)

Posted by Hannah on Saturday, January 28, 2012 at 11:55pm.

1) Where in the phase diagram of a compound do all phases exist together?

a) at the sublimation point
b) at the boiling point
c) at the melting point
d) at the critical point
e) at the triple point

I chose answer E, the triple point.

Is this correct?

Chemistry(Please check) - DrBob222, Sunday, January 29, 2012 at 12:05am
I agree. By the way, I looked at the 2CH4 equation posted by another student and I did not obtain 338 kJ for that Hess' Law problem. You may want to revisit that problem. I specifically remember that I agreed with your answer of 338 kJ. Now I think I was incorrect.
Chemistry(Please check) - Hannah, Sunday, January 29, 2012 at 12:17am
Oh ok thank you I will look over it again.

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