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The speed at which the reaction proceeds in a chemical reaction is called reaction rate. The factors like temperature, the pressure of the vessel, the surface area of the reacting substrates, etc., will affect the reaction rate. The increase in temperature of the reaction increases the reaction rate and vice-versa.

The increase in temperature of the reaction increases the rate of the reaction. The two factors that depend on the reaction rate with temperature are the reaction number and the collision energy. The energy is required for the interaction of the molecules undergoing reactions. So an increase in temperature increases the energy rate of interaction, and larger molecules will move faster and undergo collisions. Therefore, the number of effective collisions is higher, energy is also high with an increase in T, and the reaction rate increases.