Answer:
The fraction of molecules with kinetic energy greater than Ea increases.
Step-by-step explanation:
In the scenario above, it is primarily by the fraction of molecules with kinetic energy higher or bigger that Ea increases.
Naturally chemical reactions are everywhere around you and inside you. In addition to the biochemical reactions that allow you to transform the molecules you eat and breathe into usable energy, there are industrial laboratories in cities around the world producing chemicals as well as products that rely on chemicals for their manufacture.
In addition to the product or products produced and having a proper supply of reactants, is how quickly a reaction can be expected to proceed. This can have an impact on safety, product quality and other outcomes.