Collision Theory Flashcards
Chemical Change
Rearrangement in the particles of certain substances that leads to the formation of a new compound or element.
Evidences of change
color, texture, smell, formation of solid precipitate (lumps or solid clusters), change in temperature
Synthesis/formation/combination
A + B → AB
Analysis/Decomposition
AB → A + B
Single Displacement/Replacement
AB + C → AC + B
Metathesis/Double Displacement
AB + CD → AD + CB
Collision Theory
reacting particles can form products when they collide with another
criteria for collision
enough kinetic energy & correct orientation
Activation Energy
energy that reactant particles must
possess to initiate the reaction
high activation energy
slow reaction; endothermic - energy goes inside
low activation energy
fast reaction; exothermic - energy goes out
Increased Temperature
When the temperature is increased, the average speed of the particles also increases
Maxwell-Boltzmann Distribution
probability distribution used for describing the speeds of various
particles within a stationary container at a specific temperature
Increased Concentration
Higher amounts = higher Rate of Reaction and higher collision
Increased Pressure
Gas particles become closer together and increase the frequency/chances of collisions; P = F/A
