AP Chemistry Chap 12 Test Summary ‘16
Kinetics Chapter 12 Test Summary
34 points possible
23 Multiple choice 1 points each
3 Free Response
variable points 1)Differential rate law from data, 2)
integrated rate calculations from data, 3) Energy diagram or Boltzmann distribution
curve to explain Ea and catalyst effect.
Differential Rate law: Δ[A]/Δt = Rate = k [A]n[B]m
Finding Rate Law from Initial Rates and concentration data.
Calculating k, including units on k.
Calculating a Rate from new concentration data
***Prob 23-28 ***See notes, podcast, and book
Integrated rate law(one reactant only): Finding order and rate law of a reactant
from concentration and time data. Recognizing order from graph ( (Straight
line: ln[A]=1st order, 1/[A]= 2nd order, [A] =0 order vs. time). Write both
differential and integrated rate laws. Finding k from data points or slope of line.
Use integrated rate law to find the initial concentration and the concentration at any
time, t. ***See notes, podcast, and book
***Prob 37-48
Half lives: calculate, from integrated law and half life formula; find % left after a
certain number of half lives.
***within Prob 49-56 and the Half life worksheet
Reaction Mechanisms: Writing rate laws from mechanisms with the slowest step
identified. Identifying the correct mechanism given the rate law. Identifying the
intermediates and catalysts in a reaction mechanism. ***See notes, podcast,
and book
***Prob 59-62
Energy Diagram: analyze graph for Ea (for forward and reverse reactions), E, exothermic
vs. endothermic, Catalyzed Ea, intermediate, transition state.
Maxwell-Boltzmann Energy Distribution graph: % particle vs. energy; Shape
of curve, changes in curve for different temperatures; how Ea fits on curve. Use
this graph to explain why lowering the Ea or raising the temperature makes the
reaction go faster (ie: number of particles with Ea).
***See notes, podcast, and book
Catalysts: effect on rate; homogeneous, heterogeneous, how they work, effect on
Ea; Interpret and/or draw energy vs. reaction progress graph for catalyst,
Ea, exo/endothermic. ***Prob 20-22,75,78
Collision theory: Effect of temperature, concentration, surface area on rate.
Explain why, using collision theory.***See notes, podcast, and book