# Chem Ch13

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1. Define reaction rate and give the formula.
• The speed of a chemical reaction. Also, the change in concentration of reactant or product over some time interval. Units are usually M/s.
• rate = Δ[A]/Δt
2. Define average rate and give the formula.
• Change in concentration over some finite interval of time.
• rate = [A]2 - [A]1 / t2 - t1
3. Define instantaneous rate.
The rate of change of concentration at a specific instant of time. Think: tangent line to the reaction rate curve.
4. What is the relative rate for the following formula?

aA + bB --> cC + dD
rate = - 1/a (Δ[A]/Δt) = -1/b (Δ[B]/Δt) = 1/c (Δ[C]/Δt) = 1/d (Δ[D]/Δt)
5. What is the formula to determine the order of the reaction?
• solve for n:
• ([A]2/[A]1)n = rate2/rate1
6. What is the rate law?
rate = k [A]n[B]m

### Card Set Information

 Author: MendyC33 ID: 65542 Filename: Chem Ch13 Updated: 2011-02-10 22:27:45 Tags: Chem ch13 Folders: Description: material from chapter 13 Show Answers:

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