A sample of ethanoic acid is at 85°C. At a pressure of 50 kPa, what increase in temperature is needed to reach the boiling point of ethanoic acid?

1 Answer
Nov 1, 2016

We don't know.

Explanation:

The normal boiling point of ethanoic acid is 118-119 ""^@C. This is a physical property of acetic acid, which you probably would not know offhand. So at 118-119 ""^@C, the vapour pressure of acetic acid is 1 atm.

At 50 kPa, a reduced pressure, the boiling point of acetic acid is unknown, and is the subject of experiment, which we ain't got. Of course it would be less than 118-119 ""^@C, but we need more data.