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Students investigate the thermodynamics of physical and chemical changes that absorb and release heat energy with this 2-activity kit. They calculate the heats of solution of 2 salt compounds and determine the heat of combustion of a hydrocarbon. For both activities, students write balanced thermochemical equations for the reactions and classify them as endothermic or exothermic. Kit activities take about 45 min. Kit materials are sufficient for a class of 30 students working in groups of 3.
Grades 912. Heat up your study of thermodynamics with this 2-activity kit. Students will investigate the thermodynamics of physical and chemical changes that absorb and release heat energy. Using a coffee cup calorimeter, students calculate the heats of solution of 2 salt compounds. In the second activity, students determine the heat of combustion of a hydrocarbon using a soda can calorimeter. For both activities, students will write balanced thermochemical equations for the reactions and classify them as endothermic or exothermic. Kit activities require approximately 45 min and materials are sufficient for a class of 30 students working in groups of 3.
|Ammonium Chloride, 100 g||1||Included|
|Calcium Chloride, Anhydrous, 100 g||1||Included|
|Safety Matches, Pack||10||Included|
|Digital Resource Instruction Card||1||Included|
|Teacher’s Manual with Reproducible Student Guide||1||Included|
|Thermometers||10||Needed, Not Included|
|Aluminum Soda Cans, 12 oz, Empty (with pull tab attached)||10||Needed, Not Included|
|Graduated Cylinder, 100 mL||10||Needed, Not Included|
|Beakers, 400 mL||10||Needed, Not Included|
|Index Cards, 3 x 5”||10||Needed, Not Included|
|Stir Rods||10||Needed, Not Included|
|Ring Stands||10||Needed, Not Included|
|Iron Rings||10||Needed, Not Included|
|Balance||1||Needed, Not Included|
|Weighing Paper or Weigh Boats||Needed, Not Included|
|Tap Water||Needed, Not Included|
|Ice||Needed, Not Included|