AP®︎ Chemistry: Topic 7.1 Flashcards

Master key terms and definitions for Topic 7.1 of AP Chemistry – Introduction to Equilibrium to help you prep for quizzes and the AP exam.

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Term

Reversible Reaction

Definition

A reaction that proceeds in both forward and reverse directions under the same conditions.

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Reversible Reaction
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A reaction that proceeds in both forward and reverse directions under the same conditions.

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Forward Reaction and Reverse Reaction
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The forward direction forms products from reactants; the reverse direction reforms reactants from products.

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Double Arrow, ⇌
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The symbol showing a reaction is reversible and can establish equilibrium.

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Reversible Physical and Chemical Processes
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Examples include evaporation-condensation, dissolution-precipitation, gas absorption-desorption, acid-base, and redox reactions.

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Closed System
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A system where matter does not enter or leave, allowing equilibrium to be established.

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Dynamic Equilibrium
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A state where forward and reverse processes continue at equal rates with constant amounts.

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Equilibrium Observations
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At equilibrium, rates are equal while concentrations remain constant but are not usually equal.

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Equilibrium Graphs
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Graphs show concentrations leveling off and forward and reverse rates becoming equal over time.

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