Reviewer: Seila Buth

Synopsis: The module explains how gases behave in specific cases, such as when a mass is placed atop of it. It also identifies the difference in internal energy levels between the expansions of gases.

Review Details: The overall module appears rather short; further elaboration of the subject could be done. It was grammatically correct mostly but had minor word errors, such as missing words to help illustrate. The module lacks critical questions for the reader, and needs to include some sort of question to test the reader of the knowledge presented on the page. The most helpful part of the module are the pictures, which help convey the point.

Figures Questions:

1)          The figures presented were fairly help in comprehending the material, but further explanations of the figures would also be helpful.

2)          Legends for the figure are provide but could be explained more clearly.

3)          Each individual figure is not referenced, which needs to be done.

Text Questions:

1)          No text questions were presented. Any sort of questions need to be added so the reader can apply what they have just learned about gas expansion. Lacking questions for the material is crucial for the reader to better understand the material.

Plagiarism Check: Plagiarism websites were check, and no evidence found.