Savvas Learning
Chemistry, the Central Science: Enthalpies of Formation
A section from a textbook about enthalpies of formation. Includes practice exercises, a table of enthalpy values, and examples.
State University of New York
State University of New York: Hess's Law
Because reactions can be considered "additive," a series of reactions can be written like simultaneous mathematical equations and a net reaction determined by addition. To use this simulation, select individual reactions from the three...