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Chem Ch13
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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
Define average rate and give the formula.
Change in concentration over some finite interval of time.
rate = [A]
_{2}
- [A]
_{1}
/ t
_{2}
- t
_{1}
Define instantaneous rate.
The rate of change of concentration at a specific instant of time. Think: tangent line to the reaction rate curve.
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)
What is the formula to determine the order of the reaction?
solve for n:
([A]
_{2}
/[A]
_{1}
)
^{n}
= rate
_{2}
/rate
_{1}
What is the rate law?
rate = k [A]
^{n}
[B]
^{m}
Author:
MendyC33
ID:
65542
Card Set:
Chem Ch13
Updated:
2011-02-10 22:27:45
Tags:
Chem ch13
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Description:
material from chapter 13
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