It’s springtime!! And thermochemistry is in the air!!
Many chemistry and physical science teachers are teaching thermochemistry topics at this time of the year. Here is a great free lab for you.
When a substance undergoes a phase change, heat is either released or absorbed by the substance. Crystallization involves a phase change from liquid to solid; heat is released by the substance as it solidifies.
This lab is easy and works every time. The materials list is very simple: 25 x 200 test tube, 250 mL Beaker, Ring stand and ring, Hot plate, 100 mL Graduated cylinder, Thermometer, Styrofoam cup, Safety goggles, Wax sample, Balance, Test tube tongs.
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