Phase Change Calculations

The energy required to move a substance from one state of matter to the next can be determined mathematically. Chemically, a substance can melt, freeze, condense, or vaporize. In this activity, use the NEXT and PREV buttons in the lower right corner to learn how to calculate molar heat of fusion, molar heat of vaporization, and molar heat of condensation.

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Phase Change Calculations Review

Now that you have learned how to calculate molar heat, complete this non-graded activity to check your knowledge. Read each question, set-up the dimensional analysis, and solve the problem. Then, enter your answer in the blank space provided and click SUBMIT to check your responses. Click on the interactivity thumbnail, and then click NEXT to get started.