[RACE 4STEM] FACTORS AFFECT RATE REACTION

The rate of a reaction is NOT affected by which of the following :

• concentration

• particle size (surface area)

• temperature

• all of these affect reaction rate

The rate of a reaction increases as temperature ?

• increases

• decreases

• stays as same

• i don't know

A _______ is a substance that increases the rate of reaction without being used up during the reaction

• reactant

• product

• catalyst

• temperature

Smaller particle size allows for a ____ surface area to be exposed for the reaction

• smaller

• larger

Catalyst permit reactions to proceed along a ____ energy path

• higher

• lower

Increasing the concentration of the reactants will slow down the reaction

• true

• false

• maybe

• hmmm

Increasing the temperature will increase the kinetic energy of particles, therefore increasing the collisions between particles

• true

• false

Product will form faster if ?

• the particle size of reactants are larger

• temperature decreased

• concentration of the reactants increased

• the reaction is not stirred