Suppose you are using distillation to separate cyclohexane and toluene. The boiling point of cyclohexane is

Question

Suppose you are using distillation to separate cyclohexane and toluene. The boiling point of cyclohexane is , and the boiling point of toluene is

The boiling point of cyclohexanol is 81°C and the boiling point of toluene is 111°C.

Explanation:

The boiling point of cyclohexanol is 81°C and the boiling point of toluene is 111°C.

Therefore, the liquid collected first should be cyclohexane. .

Cyclohexane is collected first in the distillation to separate cyclohexane and toluene.

In the distillation process the mixture of cyclohexane and toluene is heated therefore vapourizing the subtance. Under the boiling reflux, the vapour phase become richer in the low boilng component ,cyclohexane. The cyclohexane vapours continue to condense first as compare to high boiling component ,toluene. Hence, cyclohexane is collected first.