Le Chatelier's Principle (WJEC / Eduqas)

WJEC / Eduqas A Level · Equilibria

Change one condition and watch the equilibrium respond.

Equilibrium

Forward reaction is…

More gas molecules on the…

Predict mode

Predict first

Call the shift before it plays

Concentrations

Change one thing at a time.

Temperature

Temperature298 K

Pressure

Pressure1.0 atm

Catalyst

—

ΔH = —

1 · Disturb 2 · Predict 3 · Watch

Equilibrium established. Change one condition to disturb it.

Equilibrium Position

⇌

Equilibrium

Le Chatelier's Analysis

Change a condition, then watch the shift to see the analysis…

Concentration – Time