The reaction between potassium iodide KI and hydrogen peroxide H2O2 is a redox reaction that can be influenced by various factors, including light intensity and temperature. The reaction can be represented by the following equation:2 KI + H2O2 2 KI + 2 H2O + O2Effect of light intensity:The intensity of light can affect the rate of the reaction between potassium iodide and hydrogen peroxide. When the light intensity is increased, the energy provided by the photons can excite the reactant molecules, leading to the formation of more reactive species. This, in turn, increases the rate of the reaction. Conversely, when the light intensity is decreased, the reaction rate will also decrease due to the lower energy provided to the reactant molecules.Effect of temperature:Temperature also has a significant effect on the rate of the reaction between potassium iodide and hydrogen peroxide. As the temperature increases, the kinetic energy of the reactant molecules increases, leading to more frequent and effective collisions between the molecules. This results in an increased reaction rate. According to the Arrhenius equation, the reaction rate doubles for every 10C increase in temperature. On the other hand, when the temperature decreases, the reaction rate will decrease due to the lower kinetic energy of the reactant molecules.Comparison of the effects of light intensity and temperature:Both light intensity and temperature can influence the rate of the reaction between potassium iodide and hydrogen peroxide. However, the effect of temperature on the reaction rate is generally more significant than the effect of light intensity. This is because temperature directly affects the kinetic energy of the reactant molecules, leading to more effective collisions and a faster reaction rate. While light intensity can also increase the reaction rate by providing energy to the reactant molecules, its effect is typically less pronounced than that of temperature.