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ΔHrxn (Delta H reaction)

Definition

Delta H reaction refers to the change in enthalpy during a chemical reaction at constant pressure. It can be either positive (endothermic - absorbs heat) or negative (exothermic - releases heat).

Related terms

Endothermic Reaction: A type of chemical reaction that absorbs heat from its surroundings.

Exothermic Reaction: A type of chemical reaction that releases heat into its surroundings.

Thermochemistry: The study of the energy and heat associated with chemical reactions.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.