An engineer is trying to create a fast reaction in a fuel mixture. Which should she do? A. Decrease the amount of fuel B. Lower the temperature of the engine C. Add a catalyst to the fuel mixture D. Lower k for the fuel reaction

To increase the rate of a reaction, you can either do any of the following:

-increase the temperature

-increase concentration of the aqueous reactant

-increase pressure of the gas

-use a catalyst

-increase surface area of the solid reactant

From these, the engineer should therefore do C. Adding a catalyst speeds up the reaction without really joining the reaction.