Question

In which situation will the reaction rate increase

Answer 1

When surface area is increased

When the concentration is increased

When the temperature is increased

Presence of Catalysts

Answer 2

A) when a catalyst is added

Step-by-step explanation:

The missing options are:

A) when a catalyst is added

B) when the temperature drops

C) when the pressure is lowered

D) when the molecules are large and bulky

A catalyst increases the rate of a chemical reaction without undergoing a permanent chemical change. They provide an alternative pathway to the reaction which has a lower activation energy than the non-catalyzed mechanism, this increase the reaction rate.