An increase in temperature affects the reaction rate by >decreasing the velocities of particles that collide in the reaction. >increasing the number of molecules that have sufficient kinetic energy to react. >increasing the number of molecules that have sufficient potential energy to react. >decreasing the energy that particles need to overcome the energy activation barrier.

increasing the number of molecules that have sufficient kinetic energy to react.

Explanation:

An increase in temperature affects the reaction rate by increasing the number of molecules that have sufficient kinetic energy to react.

or we say; temperature increase, leads to an increase in the amount of collisions between molecules.

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