kinetics!

Question 1

Average rate

Answer 1

change in concentration over time

Question 2

instantaneous rate

Answer 2

value of rate at a specified time (products are positive, reactants are negative)

Question 3

differential rate law

Answer 3

shows change in rate based on reactant concentration.

Question 4

how do you determine the exponent in a differential rate law equation

Answer 4

when constant- (change in reactant)^x=(change in rate)

When not constant- find n like normal, then-
(change in x)^n (change in y)^m=rate
from the FIRST EXPERIMENT

Question 5

differential rate law equation

Answer 5

rate=k[Reactant]^n [reactant2]^m

Question 6

Order equations for integrated rate law

Answer 6

zero- [a]= -kt+[a]
first- ln[a]= -kt+ ln[a]
second- 1/[a]= kt+ (1/[a])
k= rate constant (slope)
[a] the second time= initial molarity (y intercept)

Question 7

order equations for half life

Answer 7

zero- t1/2= [a]/2k
first= t1/2= .693/k
second= t1/2= 1/k[a]

Question 8

half life trends

Answer 8

zero order= second half life shorter than first
first order= second half life equal to first
second= second half life longer than first

Question 9

intermediate in reaction mechanism

Answer 9

appear in a reaction early on but disappear by the final

Question 10

which step in a reaction mechanism is rate determining

Answer 10

the slowest step (also the one you use to create a rate law equation)