Question

for fraction distillation, the difference in their boiling point should be ____________.
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Answer 1

HERE IS UR ANSWER DEAR,

Fractionl Distillation:

• Fractional distillation is a technique used to separate miscible liquids that have boiling point difference of less than 25 ºC.
• The only difference in apparatus between simple and fractional distillation methods is the use of a fractionating column used during fractional distillation.

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Answer 2

Fractional distillation is a process of separating a mixture of chemical compounds. This means that each part (called a "fraction") of the mixture can be kept apart from the other chemicals. Different chemicals have different boiling points. Fractional distillation is done by heating the mixture so that each fraction evaporates and then condenses in its own compartment.

It is a special type of distillation. Generally, the component parts boil at less than 25°kelvin from each other under a pressure of one atmosphere (atm). If the difference in boiling points is greater than 25°kelvin, a simple distillation is used.

Fractionation is done by boiling a mixture in a fractionating column. The mixture evaporates at different times and is caught in a container as a pure compound.

Fractional distillation is the main activity of oil refineries, and is done in a large fractionating column known as a "fractionation tower".