Definition:First-Order Reaction

Definition
Suppose a body has a tendency to decompose spontaneously into smaller bodies at a rate independent of the presence of other bodies.

Then the number of bodies that decompose in a single unit of time is proportional to the total number present.

Such a reaction is called a first-order reaction.

Also see

 * First-Order Reaction


 * Definition:Radioactive Decay
 * Definition:Radiometric Dating