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Meredithe DeGuzman4G wrote:At constant pressure, enthalpy is the amount of heat released or absorbed by the reaction.
Further, this is because at constant pressure the volume of reactants equals the volume of products, meaning that there was no expansion work in the reaction and the work term (w) in the equation equals zero.
Renee Grange 1I wrote:What is enthalpy?
Enthalpy is the heat entering or exiting the system. If the change in enthalpy (delta H) is negative then the reaction is exothermic. If the change in enthalpy is positive, then the reaction is gaining heat and therefore endothermic.
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