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G. Chem 3
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aA + bB ⇔ cC + dD
Equilibrium:
(is thermodyn)
- no net change in P or R
- but!!! rxn is still going (rate fwd = rate rxn)
Keq = [prod]/[react]
(@ what concent of [R] & [P] the same)
(apply to eq) *make sure to raise to coeff
Keq = [C]
c
[D]
d
/ [A]
a
[B]
b
Keq = __________
- equilib constant
- constant @ a given temp
- do not include constant solid + liq (b/c can't ∆ concent)
- include (aq) & (g)
Rule of equilib...
Any closed system will proceed towards equilibrium!
Trends
in equil...
K
eq
> 1
, @ eq, more prod
K
eq
< 1
, @ eq, more react
K
eq
= 1
, @ eq, equal prod = react
What if not @ eq....
Rxn Quotient
Q = [prod]/[react]
Q always moves toward Keq
Trends
Q > K
eq
P → R
Q < K
eq
P → R
Q = K
eq
@ eq
What if not closed system...
Author
Anonymous
ID
26993
Card Set
G. Chem 3
Description
G. Chem Class 3
Updated
2010-07-16T05:11:47Z
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