Lesson 3: Energy Transfer When Bonds Break Preview CT-STEM

Temperature Changes of Ionic Compounds Dissolved in Water

Let's review what occurred in lesson 2 by looking at Temperature vs Time graphs for three of the ionic compounds we tested.

KCl:

NH₄Cl:

NaNO₃:

Questions

Please answer the questions below.

Question 1.1

Use the graphs above to identify temperature changes from the three representative ionic compounds shown. Recall we also tested these same ionic compounds last class.

Question 1.2

Describe the temperature change that occurred with the ionic compounds tested.

Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.