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Hess’s Law Made Easy: Propane Standard Enthalpy of Formation Example
How do you calculate the standard enthalpy of formation of propane when the reaction can’t be carried out directly? By using Hess’s Law! Both carbon + hydrogen and propane produce the same CO₂ and H₂O when combusted, so we use enthalpies of combustion to build a Hess cycle and determine the unknown enthalpy of formation. A perfect ...
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