An equation that labels some components of this process as "light key" or "heavy key" can be used to find the number of theoretical plates or equilibrium trays used in this process. A setup for this process can include a Claisen adapter if an additional outlet or access hole is necessary. A substance travels a relatively short path between rotating bulbs in a kugelrohr, which is used for the "vacuum" type of this process. When the components' boiling points are less than 25 degrees Celsius apart, one should use the "fractional" type of this process. For 10 points, name this process which is used to separate mixtures based on the differential 
An equation that labels some components of this process as "light key" or "heavy key" can be used to find the number of theoretical plates or equilibrium trays used in this process. A setup for this process can include a Claisen adapter if an additional outlet or access hole is necessary. A substance travels a relatively short path between rotating bulbs in a kugelrohr, which is used for the "vacuum" type of this process. When the components' boiling points are less than 25 degrees Celsius apart, one should use the "fractional" type of this process. For 10 points, name this process which is used to separate mixtures based on the differential volatilities of their components.
An equation that labels some components of this process as "light key" or "heavy key" can be used to find the number of theoretical plates or equilibrium trays used in this process.