topic 16 - further kinetics

Question 1

rate of reaction equation

Answer 1

change in conc / time

Question 2

methods of measuring rates of reactions

Answer 2

volume of gas
change in mass
change in colormetry
titration / quenching
change in ph
change in conductivity

Question 3

first order

Answer 3

rate = k[A]
s^-1
half life equal
rate change is proportional to conc change

Question 4

second order

Answer 4

rate = k[A]^2
dm^3mol^-1s^-1

Question 5

zero order

Answer 5

rate = k
mol dm^-3s^-1
conc of reactant is proportional to volume
gradient does not change
Rate does not change

Question 6

third order

Answer 6

rate = k[A]^2[B]
dm6mol-2s-1

Question 7

rate-determining step

Answer 7

the part of a reaction that determines the rate of the reaction e.g the slowest/least

Question 8

Arrhenius equation

Answer 8

Question 9

log of the arrhenius equation

Answer 9

Question 10

heterogenous catalysts

Answer 10

reactants absorb onto thev active site on catalyst
reaction happens
products deabsorb

Question 11

diff between enthlapy in booklet

Answer 11

298k in gas state

Question 12

units of rate contstant

Answer 12

dm3 mol-1 s-1

Question 13

why cant order be higher

Answer 13

because not that many ions colliding in rate determining step