Using Heats of Formation

This page is designed to fulfil a number of purposes related to the use of formation heats to estimate reaction enthalpies. As with the other pages, it can generate problems for you to solve. Alternatively, you can use it to solve problems you find elsewhere. As your first step in using the page, you must select whether you want it to generate problems for you, by clicking on the checkbox below. If you have checked that you want the page to provide a problem, clicking on "Start" will cause one to appear in the top frame. Regardless of whether you have asked for a problem, the formation heat data is in the right frame. In using the data to solve a problem, use the following procedure:
Check here to have page generate problems

Calculated Enthalpy
Results Total Correct

Return to
Drill and Practice Problems
Return to
Chemistry 145
Return to
Chemistry 146

These problems are provided courtesy of Prof. George Wiger ( at California State University, Dominguez Hills.

Please direct any questions about this site to Please send comments or suggestions to

Scott Van Bramer
Department of Chemistry
Widener University
Chester, PA 19013

This page has been accessed 8430 times since 9/1 /98 .

Last Updated: Tuesday, September 01, 1998 11:12:46 AM