Step-by-step explanation:
Increasing temperature increases the reactivity of the substance.
This is because the temperature is a measure of the thermal agitation of the particles that make up a substance. This means that if we increase the temperature, the agitation of the molecules will also increase; and the opposite is also true: as the temperature decreases, the agitation of the molecules will also decrease. An increase in the agitation of molecules causes them to move faster, increasing the likelihood that they will collide* effectively and more frequently. As a result, the reactants will more quickly reach the activated complex which is the intermediate state between the reactants and products of a reaction.
Answer: The increase in temperature increases the kinetic energy of the reactant particles, increasing the amount of effective shocks and the rate of reactions. The higher the temperature, the faster the rate of a reaction.