Enthalpy and Endo vs Exothermic Reactions

[Elise Faux]

How does enthalpy change in endothermic and exothermic reactions?

[tristenaguinaldo]

Enthalpy changes in endothermic and exothermic reactions
If a reaction releases more energy than it absorbs, the reaction is exothermic and enthalpy will be negative. If a reaction absorbs more energy than it releases, then the reaction is endothermic and enthalpy will be positive. Enthalpy can be thought of as the total heat content of a system, so if energy is leaving it makes sense that enthalpy is negative and same for the inverse.

[Rylee Kubo 2K]

Endothermic reactions require an input of energy (resulting in a delta V value that is positive) while exothermic reactions release energy (resulting in a delta V value that is negative).

[005754640]

In exothermic reactions, enthalpy will be negative. In endothermic reactions, enthalpy will be positive.