The photochemical reaction of benzophenone is primarily initiated by the absorption of light, which leads to the formation of an excited state. This excited state can undergo various processes, such as fluorescence, phosphorescence, or reaction with other molecules. The rate of a photochemical reaction depends on the absorption of light and the efficiency of the subsequent processes.In general, the rate of a photochemical reaction is not significantly affected by temperature, as it is primarily driven by light absorption. However, temperature can have an indirect effect on the reaction rate by influencing the efficiency of the processes that occur after the initial light absorption.For the photochemical reaction of benzophenone, increasing the temperature can have the following effects:1. Increase in the rate of collision between molecules: As the temperature increases, the kinetic energy of the molecules also increases, leading to more frequent collisions between the excited benzophenone and other molecules. This can result in an increased rate of reaction.2. Change in the equilibrium between different excited states: The excited states of benzophenone can be in equilibrium with each other, and the position of this equilibrium can be affected by temperature. A change in the equilibrium can lead to a change in the efficiency of the processes that occur after light absorption, which can affect the overall reaction rate.3. Change in the rate of non-radiative processes: Non-radiative processes, such as internal conversion and intersystem crossing, can compete with the photochemical reaction. The rates of these processes can be temperature-dependent, and an increase in temperature can either increase or decrease the rate of the photochemical reaction, depending on the specific system.In summary, the rate of the photochemical reaction of benzophenone is not directly affected by temperature, as it is primarily driven by light absorption. However, temperature can have an indirect effect on the reaction rate by influencing the efficiency of the processes that occur after the initial light absorption. The overall effect of temperature on the reaction rate will depend on the specific system and conditions.