Solids in Solution and Colligative Properties: ConcepTest and Example Problem

Try to answer this ConcepTest and solve this example problem before using this module. Studies show that trying to answer the questions before studying material improves learning and retention. We suggest you write down the reason for your answer to the ConcepTest. By the end of this module, you should be able to answer these on your own. Answers will be given later in this module.

Example Problem 1

A cooling crystallizer is used to form KNO3 crystals from a solution of the dissolved salt in water at 100°C. When 100 kg of solution is fed to the crystallizer, which operates at 30°C, 25 kg of solid KNO3 is extracted. By how many degrees C is the inlet stream superheated?

Image of a graph for an example problem in the Solids in Solution and Colligative Properties module.