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Chemical Equilibrium

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Chemical Equilibrium

Partition Coefficient

The equilibrium ratio of a solute's concentrations in two immiscible phases.

P = C₁ / C₂ Dimensionless
Chemical Equilibrium

Perturbation and Re-equilibration

The disturbance of an equilibrium followed by its relaxation to a new equilibrium state.

s
Chemical Equilibrium

Phase Equilibrium

The condition in which two or more phases of a substance coexist with no net transfer between them.

μ_phase1 = μ_phase2 Dimensionless
Chemical Equilibrium

Physical Equilibrium

An equilibrium between two physical states or phases of the same substance.

H₂O(l) ⇌ H₂O(g) Dimensionless
Chemical Equilibrium

Predicting Precipitation

The use of the ionic product and solubility product to decide whether a solid will form on mixing two solutions.

Q_sp > Ksp → precipitate Dimensionless
Chemical Equilibrium

Pressure Equilibrium Constant

The equilibrium constant for a gaseous reaction expressed in terms of partial pressures.

Kp = p_C^c p_D^d / p_A^a p_B^b Various