Graphs Mastery 2 Check Hard Topic Unit 5.6

📊 10 Things to Know About AP Chemistry Graphs (Units 5 & 6)

⚡ Unit 5: Kinetics (Rate vs. [A] Graphs)

1. Graph shape indicates reaction order.
2. First-order shows linear increase in rate with concentration.
3. Slope = k for first-order reactions.
4. Zero-order → horizontal line.
5. Second-order → curved graph with accelerating rate.
6. Graph helps find order from real data.
7. Great for comparing multiple trials in rate studies.
8. Must hold other concentrations constant to isolate order.
9. Rate law links graph to kinetics math.
10. Connects graph to real kinetics examples.

⚖️ Unit 6: Equilibrium (Concentration vs. Time)

1. Graph: concentration vs. time.
2. Flat lines = equilibrium.
3. Opposite slopes before equilibrium.
4. Equilibrium = rate balance, not equal concentrations.
5. Disturbance = spike/drop then re-stabilize.
6. Graph reflects stress response (Le Chatelier).
7. Graph height depends on final [ ].
8. Time to flatten = reaction speed.
9. Catalyst shortens time but not position.
10. Analyze values to calculate K.