ccp chem - kinetics chapter test

what type of reaction is this diagram

exothermic

name the transition states

a, c, and e

name the intermediate

b and d

how many steps does this diagram have

3

what is the rate determining step (slow step)

step 3

which step has the lowest Ea

step 1

when do coefficients matter

only when comparing the rates of 2 substances

when do you use stoich

to find the rate of one substance when compared to another

zero order

rate = k[A]^0 / rate = k

[A] = -kt + [A] sub 0

[A] vs t (slope = -k / k = - slope)

t1/2 = [A] sub 0 over 2k

first order

rate = k[A]

In[A] = -kt + In[A] sub 0

In[A] vs t (slope = -k / k = - slope)

t1/2 = .693 over k

second order

rate = k[A

[A] = -kt + [A] sub 0

[A] vs t (slope = -k / k = - slope)

t1/2 = [A] sub 0 over 2k

meaning of reaction order

zero - any change in concentration will not change the rate

first - change to the concentration will equally change the rate

second - the rate = (change)²

how does temp change the rate

increase in temp = increase in rate

decrease in temp = decrease in rate

how does volume change the rate

increased volume = decrease rate

decreased volume = increase rate

what is the collision theory

molecules of a concentration can only react if they collide at the correct orientation and with enough energy to cause the bond breakage and formation

average of reaction rate

rate = change in concentration / change in time

how does the addition of a catalyst change rate

the reaction increases due to the decrease of activation energy in the reaction

how does concentration change the rate

decrease in concentration = decrease in rate