Chemical Reactions

Kinetics and Thermodynamics

What is enthalpy?

Enthalpy is a measure of the energy that something contains, and it’s defined as the total heat content of a system. In terms of chemical reactions, we are most often interested in the change in enthalpy (denoted H) associated with a reaction. The H for a reaction is defined as the enthalpy of the products minus the enthalpy of the reactants, and this is typically measured via changes in temperature that take place during the reaction.


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