Integrated rate expressions for first and zero order are mathematical expressions that relate the instantaneous rate of a chemical reaction to the instantaneous...
Integrated rate expressions for first and zero order are mathematical expressions that relate the instantaneous rate of a chemical reaction to the instantaneous concentrations of reactants and products.
First-Order Reactions:
In a first-order reaction, the instantaneous rate of the reaction is directly proportional to the instantaneous concentration of the reactant. This means that if the concentration of the reactant is doubled, the rate of the reaction will also double.
Example:
The reaction between hydrogen and oxygen to form water is a first-order reaction. The rate of this reaction is directly proportional to the concentration of hydrogen and inversely proportional to the concentration of oxygen.
Zero-Order Reactions:
In a zero-order reaction, the instantaneous rate of the reaction is independent of the instantaneous concentration of the reactants. This means that the rate of the reaction is constant regardless of the concentration of the reactants.
Example:
The decomposition of nitrogen into nitrogen gas is a zero-order reaction. The rate of this reaction is constant regardless of the concentration of nitrogen gas.
These integrated rate expressions are used in various chemical calculations, such as determining the rate of a reaction, predicting the concentration of reactants and products, and comparing the relative reactivities of different reactants