Rates of Reaction Flashcards
Collision theory
Rate of reaction depends on how often and how much energy the reacting particles have when they collide with each other
Ways to increase the rate of reaction
Increase the number of collisions
increase the energy of collisions
Main factors affecting rates of reaction
Temperature
Concentration
Surface area
Catalysts
Temperature
quicker / energy / successful collisions
Concentration
given area / more often
surface area
smaller pieces / larger surface area to work on / probability of successful collisions
successful collisions
Reactions only happen if the particles collide with enough energy
Activation energy
The minimum amount of energy that particles must have in order to react
How is the rate of reaction proportional
If the frequency of successful relations doubles, the rate of reaction will also double
Catalyst
speed up / without being changed or used up / surface to stick to / different pathway with lower activation energy
rate of reaction equation
rate of reaction = /_\m
t
how to measure rates of reaction
use a top hand balance or a syringe
