chapter 18 - rates of reaction Flashcards
(6 cards)
1
Q
rate determining step
A
the step in the reaction that determines how quickly a reaction will take place
2
Q
order 0
A
if changing the concentration of the reactant does not change the rate of the reaction
3
Q
order 1
A
if changing the concentration of the reactants changes the rate of reaction by the same amount
4
Q
order 2
A
if changing the concentration of the reactants changes the rate of reaction by the square of that amount
5
Q
rate constant calculation
A
ie rate = k[A][B]2 and k = rate/[A][B]2
6
Q
calculating rate using intial rate method
A
- mixtures of reactants with known concentrations are made up - rate is measured at beginning of reaction - series of experiments are carried out in which you would change the concentration of a reactant to see how it affects the rate - calculating the rate after altering the conc. of each reactant
