Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
The heat of formation formula, also known as enthalpy of formation, is a concept in chemistry that defines the total amount of energy absorbed or evolved as heat when one mole of a substance is formed from its constituent elements.