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when the boiling point difference is less than 20 degrees; limited to larger samples in fractional distillation why are we using a GC in this experiment to determine the composition of the fractions I obtained from simple distillation
1 Types of Molecules: the types of molecules that make up a liquid determine its boiling point. 2  If the intermolecular forces between molecules are: 3  relatively strong, the boiling point will be relatively high.4  relatively weak, the boiling point will be relatively low.he boiling point of a liquid is the temperature at which its vapor pressure is equal to the pressure of the gas above it.The normal boiling point of a liquid is the temperature at which its vapor pressure is equal to one atmosphere (760 torr). The Microscopic View.