AP Chemistry Unit 6.8-6.9 Lesson
Автор: Bies Chem
Загружено: 2026-02-09
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In this video, we explore how to calculate energy changes in chemical reactions using enthalpy of formation and Hess’s Law. In 6.8, we learn how to use standard enthalpies of formation and the formula ΔH = ΣΔHᶠ(products) − ΣΔHᶠ(reactants) to determine whether reactions are endothermic or exothermic. In 6.9, we apply Hess’s Law, showing that the total enthalpy change of a reaction is independent of the pathway and can be found by combining multiple balanced equations.
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