Antoine Equation is a mathematical formula used to describe how the pressure of a liquid can be related to temperature. It allows us to figure out how the pressure of a liquid will change at different temperatures. To use the equation, you need to know the boiling point of the liquid at a given pressure. The equation looks like this:
Pressure = A× 10^(B/(C+Temperature))
A, B, and C are constants that can be found in a special chart called an Antoine Coefficient Table. To use the equation all you need to do is plug in the A, B, and C numbers from the table, as well as the temperature you're interested in. As long as pressure and temperature are both measured in the same units, the equation will give you the correct answer.