Standard Enthalpy

Definition

Standard enthalpy, also known as standard heat of formation, refers to the change in enthalpy during a chemical reaction under standard conditions (1 atm pressure and 298K temperature).

Related terms

Hess's Law:

States that the total enthalpy change of a chemical reaction is independent of the route by which the chemical reaction takes place.

Enthalpy Change:

The amount of heat absorbed or released at constant pressure.

Thermochemistry: The study of energy and heat associated with chemical reactions.