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
Energy change refers to the difference in energy between the initial and final states of a system. It can be positive (endothermic) or negative (exothermic), depending on whether energy is absorbed or released during a process.