Entropy Practice

This resource includes 20 problems to review entropy of reactions.

It is expected that students will predict the sign and justify for 10 reactions. Additionally, they will calculate the entropy of 10 reactions using the formula:

ΔS°rxn = ΣΔS°Products - ΣΔS°Reactants.

The answers to each problem are included. Though the document can be edited to meet your lesson's needs.

The values of ΔS° that I used in the key includes ones found online from a standard formation chart. These may show a slight variation from ones you use.

This resource is available in Korean and Spanish!

A total of 5 pages.