Question

Why we couldn't heat over 100℃ when doing distillation? If unfortunately heating over 100℃, what should we do for the distillate instead of increasing the length of the condenser

please give me the correct answer, i really need it

thank you so much

Answer 1

The temparature of boiling would never exceeds 100 °C during steam distillation because as each immiscible liquid is heated, they contribute to the total vapor pressure as if the other component is not there so, at boiling point, the total vapor pressure must be equal to atmospheric temperature therefore, the component that is to be distilled is separated well.

In the second case we should rise the temparature.

Distillation process is done by making liquid to vapor and condensing back to liquid form.

To began distillation process for water it needs to make water vapor first. To make vapor there is two simple process to consider. One is rising temperature or lower the pressure. Technically rising temperature is easier and effective than lowering the pressure.