The rate of a photochemical reaction involving the degradation of an organic compound is directly influenced by the intensity of light. Light intensity can affect the rate of the reaction in the following ways:1. Increased light intensity: When the light intensity increases, the number of photons light particles that interact with the organic compound also increases. This leads to a higher probability of the compound absorbing the photons and undergoing a photochemical reaction. As a result, the rate of the reaction increases with increased light intensity.2. Decreased light intensity: Conversely, when the light intensity decreases, the number of photons interacting with the organic compound decreases. This results in a lower probability of the compound absorbing photons and undergoing a photochemical reaction. Thus, the rate of the reaction decreases with decreased light intensity.3. Saturation point: At a certain point, increasing the light intensity further may not lead to a significant increase in the reaction rate. This is because the organic compound can only absorb a limited number of photons at a given time. Once this saturation point is reached, the reaction rate will not increase significantly, even if the light intensity continues to increase.4. Wavelength dependency: It is important to note that the effect of light intensity on the rate of a photochemical reaction also depends on the wavelength of the light. Different organic compounds absorb light at different wavelengths, and the efficiency of the photochemical reaction depends on the match between the light wavelength and the compound's absorption spectrum. If the light wavelength is not within the absorption spectrum of the compound, the reaction rate may not be significantly affected by the light intensity.In summary, the variation in light intensity directly affects the rate of a photochemical reaction involving the degradation of an organic compound. The reaction rate generally increases with increased light intensity and decreases with decreased light intensity, up to a saturation point. However, the effect of light intensity on the reaction rate also depends on the wavelength of the light and the absorption spectrum of the compound.