IB Chemistry R2.3 Extent of Change
R2.3

How Far? The Extent of Chemical Change

Dynamic equilibrium, Le Chatelier's Principle, and equilibrium constants.

R2.3.1 Dynamic Equilibrium

Reversible reactions and the equilibrium state.

R2.3.2 Le Chatelier's Principle

Predicting the effect of changes on equilibrium.

R2.3.3 Equilibrium Constants (Kc & Kp)

Quantifying equilibrium position (HL: Kp).

R2.3.4 Le Chatelier's Principle

Predicting equilibrium shifts with concentration, temperature, and pressure.

HL EXTENSION

R2.3.5 The Equilibrium Constant Kc

Writing Kc expressions, ICE tables, and the reaction quotient Q.

R2.3.6 The Equilibrium Constant Kp

Mole fractions, partial pressures, and converting Kc to Kp.

R2.3.7 Gibbs Free Energy & Equilibrium

ΔG° = −RTlnK and predicting spontaneity from K.

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