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Exentropic Reaction

Definition

An exentropic reaction is one where there is an increase in entropy; meaning, there's more disorder after the reaction than before it.

Analogy

Think about cleaning your room then throwing a wild party. Beforehand, everything was neat (low entropy), but after the party, things are scattered everywhere (high entropy). The party represents an exentropic reaction because it increased disorder.

Related terms

Exothermic Reaction: A chemical reaction that releases heat into its surroundings.

Spontaneous Reaction: A reaction which will proceed without any outside energy input.

Chemical Equilibrium: The state where both reactants and products are present in concentrations which have no further tendency to change with time.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.