The boiling point of a liquid is dependent on the prevailing atmospheric
pressure.
The boiling point of ethanoic acid at 80 kPa is 110 °C
Reasons:
At the boiling point temperature of a liquid, the vapor pressure is equal to
the atmospheric pressure.
The vapor pressure axis gives the atmospheric pressure of the vapor of the
liquid when it is boiling at a given temperature.
From the Vapor pressure, Temperature chart, for ethanoic acid, we have;
when the vapor pressure is 80 kPa, it coincides with a temperature of 110 °C.
Therefore, the boiling point of ethanoic acid at 80 kPa is 110 °C.
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