The boiling point of ethyl alcohol is 78.3 C,the heat of vaporization is 855 joules/gm.?

Question

find the dp/dt at the boiling point.

Answer 1

Not sure what you are looking for. Change in pressure/ change in temperature?

At the boiling point the temperature does not change it remains constant until all of the liquid has become vapor (78.3 C)

The vapor pressure equals one atmosphere at the boiling point so the pressure doesn't change.

I have no idea what you are looking for.