Fractional Distillation (Labster)
Score: 50/50
If you’re heating a homogenous liquid mixture and its components have different boiling
temperatures. Which component will we collect first in the receiving flask?
Answer: The component with the lowest boiling point
Which of these phase changes occur during simple distillation?
Answer: Once cycle of evaporation and then condensation
What will happen if we heat a 50:50 mixture of cyclohexane and toluene (i.e., 0.5 mole
fraction of both) to 100 degree Celsius?
Answer: There will be a partial evaporation of both toluene and cyclohexane
A never level line has appeared in the diagram for the first level of the fractioning
column (103-degree Celsius). Using the new lever line, how much vapor do we have?
Answer: A bit more than half of the amount
What do you think will happen to this vapor as it progresses further up (the column has
seven levels)?
Answer: The top of the column will be too cold, meaning no vapor will escape
the column.
