In equation (2), is a proportionality constant depending on the solvent.
Example:
When a sample of silicon is dissolved in cyclohexane, a .02m solution is obtained. Given that the resulting solution has a freezing point that is .402K lower than that of pure cyclohexane, what is for cyclohexane?
Rearranging equation (1) yields the solution.
Example:
What is the change in boiling point of the above solution?
The constant for boiling point elevation must be used in this case.