Rate of Reaction 1

What factor will NOT increase the rate of reaction?

• Increasing the temperature

• Adding a Catalyst

• Decreasing the concentration

• Increasing the surface area

Which concentration of acid will react the fastest with limestone?

• 1 mol/L

• 5 mol/L

• 2 mol/L

• 0.5 mol/L

Which of the following are NOT strictly particles?

• Atoms

• Molecules

• Ions

• Compounds

• Photon

What is needed for a successful reaction to occur?

• Particles need to collide

• Particles colliding at the right angle

• Particles colliding with enough energy

• All of the above

Which of the following will NOT increase the rate of reaction?

• Mixing/stirring the reaction

• Increasing the pressure

• Keeping the concentration constant

• Increasing the temperature

Why does increasing the TEMPERATURE increase the rate of reaction?

• There are more particles present that will collide

• Particles now have a lower activation energy

• Particles have more kinetic energy and are more likely to collide

• Hotter particles are more likely to evaporate

Why does increasing the SURFACE AREA increase the rate of reaction?

• Particles are more exposed to other reactant particles

• There are more particles in the solution

• Particles have more energy in the solution

• Particles now have a catalyst present

Why does increasing the CONCENTRATION increase the rate of reaction?

• Particles have more energy

• Particles are more exposed to other reactant particles

• There is a catalyst present in the reaction

• There are more particles per volume

What is a catalyst?

• Something that speeds up a reaction without being used

• Something that heats up a reaction

• Something that increases the surface area of a reaction

• Something that adds more chemicals to a reaction

What is the activation energy?

• The energy given off by a reaction

• The energy needed to activate particles

• The minimum amount of energy needed for a reaction to occur

• What happens when you add a catalyst