Order of the reaction is an experimental quantity
- Not possible to know and from a balanced equation
- Zero Order - Rate of reaction Always the same
- First Order - Rate proportional to the reactant concentration
- Doubling Double the rate of the reaction
- Second Order - Rate directly proportional to square toot of the reactant concentration
- A rate quadruples when doubling
Integrated Rate Law
- Relationship between and the time
Straight line with slope
First Order Reactions
The half life of a first order reactions is constant when:
- Constant rate reactions
Rate does not change if concentration changes.
The half life of first order reaction is constant.
The half life, of a reaction is the length f time it takes for the concentration of the reaction to fall to its initial value. The half life for First order reaction, the half life is constant and independent and independent of concentration.