What Is Average Rate Of Reaction

What is average rate of reaction?

graph TB A[Average Rate of Reaction] A --> B[Definition] B --> C1[Change in concentration of reactants or products over time] A --> D[Factors affecting] D --> D1[Temperature] D --> D2[Concentration] D --> D3[Pressure] D --> D4[Catalysts] A --> E[Units] E --> E1[Molarity per unit time] A --> F[Examples] F --> F1[Decomposition of Hydrogen Peroxide] F --> F2[Combustion of Methane]