Section 5
Standard Enthalpy of Formation and Reaction
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Version 33
By Boundless
By Boundless
Boundless Chemistry
Chemistry
by Boundless
4 concepts
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Standard States and Standard Enthalpy Changes
The standard enthalpy of formation refers to the enthalpy change when one mole of a compound is formed from its elements.
Standard Enthalpy of Reaction
The standard enthalpy of reaction is the enthalpy change that occurs in a system when a chemical reaction transforms one mole of matter under standard conditions.
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Hess's Law
Hess's Law sums the changes in enthalpy for a series of intermediate reaction steps to find the overall change in enthalpy for a reaction.
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Heat of Solution
Heat of solution refers to the change in enthalpy when a solute is dissolved into a solvent.