1/9
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
Reaction Rate
Change in concentration of a R or P per unit of time (mol/(L*s)
Collision Theory
Particles must collide
Particles must collide with correct orientation
Particles must collide with enough energy to form activated complex
Activated Complex / Transition State
Intermediate particles made up of joined reactants
Activation Energy
Minimum amount of energy that colliding particles need to form activated complex
Nature of Reactants
The more reactive a substance is, the faster the reaction rate
Concentration
Reaction speeds up when the concentration of particles is increased
When the concentration (of B) is increased, more molecules are available to collide (with A) — A can ‘find’ B more easily because there are more Bs
Surface Area
Larger surface area provides more opportunity for more collisions — increasing the reaction rate
Temperature
As the temperature is increased, the reaction rate does too
Raises the kinetic energy of reacting particles, raising the collision frequency and energy
More collisions have enough energy to overcome the activation energy barrier & actually react
Cataylsts
Enxyme that increases rate of chemical reaction without being consumed with reaction
Doesn’t yield more product & isn’t included in the products of reaction or chemical equation
Makes graph height smaller, using less energy
Inhibitor
A substance that slows down, inhibits, the reaction rates. Sometimes prevents it as a whole