Chemistry unit 4 definitions

Rate of reaction

Initial rate of reaction

Rate equation

Order of a reaction

Overall order

Rate constant k

Half-life

Reaction mechanism

Rate-determining step

Intermediate species

Equilibrium law

Dynamic equilibrium

Homogenous equilibrium

Heterogeneous equilibrium

le Chatelier's principle

Bronsted - Lowry acid

Bronsted - Lowry base

Alkali

Neutralisation

Acid - base pair

pH

Strong acid

Weak acid

Acid dissociation constant, Ka

pKa

Ionic product of water, Kw

Buffer solution

Equivalence point

End point

Standard enthalpy change of neutralisation

Lattice enthalpy

Hess' law

Standard enthalpy change of formation

Enthalpy change of atomisation

First ionisation energy

First electron affinity

The standard enthalpy change of a solution

The standard enthalpy change of hydration

Entropy, S

Standard entropy change of a reaction

Free energy change

Oxidation

Reduction

Standard electrode potential

Transition element

Complex ion

Ligand

Coordination number

Stereoisomers

Ligand substitution

Stability constant, Kstab