rates Flashcards
(13 cards)
rate
change in concentration of reactant or product over time
fewer bonds broken…
faster rate
weaker bonds…
faster reaction
- covalent slower than ionic
states from fastest to slowest
gas, liquid, solid
increase in temp…
increases rate
collision theory
rate is determined by frequency of collisions
kinetic molecular theory
speed (kinetic energy) increases as temperature increases
why does increasing concentration increase rate
increases particles that pass Ea, increasing collisions
what do catalysts do
lowers Ea
how can a collision be successful
- correct orientation
- enough kinetic energy (sufficient velocity)
activation energy
minimum amount of energy required for particles to produce a chemical reaction
activated complex
The transition state where molecules collide with enough energy to break or form new bonds
order
indicates how concentration of reactants affects the rate
