The effect of different light intensities on the reaction rate of the decomposition of hydrogen peroxide catalyzed by potassium iodide at room temperature can be studied through a series of experiments. The reaction can be represented as:2H2O2 aq 2H2O l + O2 g In this reaction, potassium iodide KI acts as a catalyst, which speeds up the reaction without being consumed in the process.Light intensity can affect the reaction rate by providing energy to the reacting molecules, which can lead to the formation of more reactive intermediates or increase the frequency of successful collisions between the reactants. In the case of hydrogen peroxide decomposition, the presence of light can lead to the formation of reactive radicals, such as hydroxyl radicals OH and superoxide radicals O2- , which can further enhance the reaction rate.To study the effect of different light intensities on the reaction rate, you can perform the following steps:1. Prepare a series of hydrogen peroxide solutions with a constant concentration, for example, 0.1 M.2. Add a small amount of potassium iodide e.g., 0.01 M to each solution to initiate the reaction.3. Expose each solution to different light intensities, ranging from complete darkness to bright light. You can use a light source with adjustable intensity or place the reaction vessels at different distances from the light source.4. Monitor the reaction rate by measuring the amount of oxygen gas produced over time. This can be done using a gas collection system, such as a graduated cylinder filled with water and inverted over the reaction vessel.5. Plot the reaction rate e.g., the volume of oxygen gas produced per minute as a function of light intensity.6. Analyze the results to determine the relationship between light intensity and reaction rate.In general, you may observe that the reaction rate increases with increasing light intensity, as the light provides additional energy to the reacting molecules. However, the exact relationship between light intensity and reaction rate may depend on various factors, such as the specific concentrations of hydrogen peroxide and potassium iodide, the wavelength of the light source, and the presence of other substances in the reaction mixture.