Question

Reaction rates increase with temperature because as the temperature increases:

The equilibrium constant increases

The activation energy increases

The activation energy decreases

The molecules have higher average kinetic energy

The molecules have lower average kinetic energy

Answer 1

Reaction Rate increase with temperature because as the temperature increase the molecules having higher average kinetic energy.

Explanation:

An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision (called Activation energy) resulting in a reaction.

Refer attached graph for better clarity

These are the extra molecules which got activation energy which will result in affective collision resulting increased rate.