Heat of Formation Definition - Chemistry Glossary

Heat of Formation Definition: the heat released or absorbed (enthalpy change) during the formation of a pure substance from its elements, at constant pressure and usually denoted by ΔHf.

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Helmenstine, Anne Marie, Ph.D. "Heat of Formation Definition - Chemistry Glossary." ThoughtCo, Jun. 21, 2014, thoughtco.com/heat-of-formation-definition-606356. Helmenstine, Anne Marie, Ph.D. (2014, June 21). Heat of Formation Definition - Chemistry Glossary. Retrieved from https://www.thoughtco.com/heat-of-formation-definition-606356 Helmenstine, Anne Marie, Ph.D. "Heat of Formation Definition - Chemistry Glossary." ThoughtCo. https://www.thoughtco.com/heat-of-formation-definition-606356 (accessed May 24, 2018).