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Bond Energy (A-Level Chemistry)

Outlining bond energy and bond enthalpy. How to use mean bond enthalpies of reactants and products to find the enthalpy change for a reaction. The differences between theoretical enthalpy changes based on mean bond enthalpy data and actual experimental measurements are explained. Recap: 00:35 Bond energy: 02:25 Bond enthalpy: 04:43 Using mean bond enthalpies to find enthalpy change: 05:50 Combustion of Propane (example): 06:51 Problems with mean bond enthalpies: 10:49 Activation Energy*: 12:29 Summary: 13:11 *Note - this description applies only to simple reactions where all reactants are in gaseous state. For some reactions, activation energy isn’t solely based on bond breaking in reactants. Page on chemistrystudent.com: https://www.chemistrystudent.com/bond... Relevant Videos: Enthalpy and Enthalpy Change    • Enthalpy and Enthalpy Change (A-Level...   Standard Enthalpy Changes    • Standard Enthalpy Changes - combustio...   Calorimetry    • Calorimetry (A-Level Chemistry)   Hess’s Law and Hess Cycles    • Hess’s Law and Hess Cycles (A-Level C...   Thank you for watching - if you found the video useful, please like and subscribe!