Answer to Question #120031 in Organic Chemistry for Comi

Question

if a mixture of lubricating oil diesel oil petrol , paraffin and kerosene are placed in a fractional distillation apparatus what could be done if the fractions collected were found to still be mixtures

Answer 1

the thermometer has to read exactly the boiling point of the more volatile liquid. If it is below that, then nothing is going to pass out into the condenser. If it is above that, then your distillate will still contain some of the less volatile component.