Factors Affecting Reaction Rates (17.2)

Question 1

Chemical Nature

Answer 1

The identity of substances affecting how fast they react.

Question 2

Physical state during reaction?

Answer 2

The form (solid, liquid, gas) that influences how they interact during the reaction.

Question 3

Does surface area affect rate of reactions?

Answer 3

Yes, more surface area (smaller particles) speed up reactions.

Question 4

Does temperature affect reaction rate?

Answer 4

Yes, increase in temperature also increases rate of reaction, because more kinetic energy is being brought upon for molecules to move around more.

Question 5

Does concentration matter for the reaction of chemicals?

Answer 5

Yes the greater concentration the higher the reaction rate, generally.

Question 6

Catalyst

Answer 6

Speeds up a reaction by lowering the energy barrier (activation energy) without sacrificing the change in process. Helps convert products more easily and quickly.

Question 7

Heterogeneous Reaction

Answer 7

A reaction involving reactants in different phases, such as solid and liquid or gas.