Factors Affecting Reaction Rate

Front

The rate of a chemical reaction is NOT affected by which of the following: temperature, concentration, particle size (surface area)?

Back

All of these affect reaction rates

Front

The rate of a reaction increases as temperature ________________.

Back

Increases

Front

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

Back

catalyst

Front

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

Back

larger

Front

The ___________ the surface area of the reactants, the faster the reaction rate.

Back

larger

Front

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

Back

true

Front

Usually lowering the temperature will slow down a reaction.

Back

true

Front

Increasing the concentration of the reactants will slow down the reaction.

Back

false

Front

A catalyst increases the efficiency of collisions between reactants.

Back

true

Front

Does decreasing the concentration of the reactants increase the collision frequency between reacting particles?

Back

False