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Reaction Rates

Rates of reaction

TermDefinition
What does the collision theory say about the collisions? Collisions must happen for reaction to occur
What does the collision theory say about the energy of the collisions? Collisions must occur with enough force or energy.
What does the collision theory say about the orientation of particles? The particles must be aligned correctly.
What does it mean to say there is a fast reaction rate? There are a large number of collisions, so that a lot of product is being made.
What does it mean to say there is a slow reaction right? There are only a few collisions occurring, so that only a small amount of product is made.
Define the term concentration. concentration is the amount of material present.
How does a high concentration change the rate of reaction? The reaction will go faster.
How will the low concentration change the rate of reaction? The reaction will go slower.
How will the high temperature affect the rate of reaction? High temperature means the particles have more energy so they will move faster, and there will be more collisions. The reaction will go faster.
How will a low temperature affect the rate of the reaction? Low temperature means the particles will have less energy and they will move slower. So, there will be fewer collisions. The reaction will go slower.
What is surface area? Surface area is the amount of particles on the outside.
How can surface area be increased? The material can be cut into pieces or ground up.
How can service area be decreased? The particles can be packed together.
If the surface area is increased, what will happen to the rate of reaction? The reaction will go faster.
If the surface area is decreased, what will happen to the rate of the reaction? The reaction will go slower.
What is the purpose of a catalyst? A catalyst lowers the activation energy.
What happens to a catalyst during a reaction? The catalyst is unchanged.
What is unique about an enzyme? Enzymes are catalyst in living things.
Created by: lb goodlock
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