Summary Chemistry 144 Study guide

Equilibrium concept



Dynamic equilibrium rn doesn't stop reactants products does not change

overtime


Niang E LNOLIg


V8
X
Rate

slauilibrium reached Fm t
sauilibrium

reached



At Lanilibrium the food I rev rates are canal Kf Kr

Kp NO232 constant Kc
Kr N204
Ka kr are temperature dependant Arrhenius can
Kc is also temperature dependant
Equilibrium reached from Fwd AND rev rn
products
does not depend on initial Reactants or
Mlg t 3421g I 2NM319




F
MZ
an
fy 113
t t

,equilibrium constant




Ko COEDd
ATF Ect Stoichiometric coefficients

b ppgB b
eauilib concentrations Moldm's



eg AcOMlaq E Mtlaq t Aco lag
V
Acetic Acid 1043100d
OH
Kc Mt ACO lanillbrium expression
Cacomy


Heterogenous equilibria

I Dureliauids are not included in K expression
puresolids
Tonstantstareadyfactored in Kc expr

Nallist E Natiaql A lag
ey

Kc Nat A

, interpreting equilibrium constants



magnitude equilibrium composition relative ant sot RIP

K
Kurt
Rev
E
Lauilibrium lies to P hanilibrium lies
the Right to the left
Fwd ryn favoured rev rn favoured

P 7 R CPJ KER

Direction

Kreverse I Kforward


Molly E LNOzigl NOZIYI E NIOaly
Igiven Kc 0,212 Ko value
I 14F NOD Ke NDA
NaOH NOR
KEG I LIKE Kip
rev ran favoured 10,2125

4,72
Kc I Fwd ryn favoured

, Stoichiometry

knew Kad t
12041g FINALLY
x IN201141 FINOzig
given Kc 0,212 knew 10,21272

0,0449



multi step process
knee KI X K2

t 312141 E 6M
eg INMsig Ig Nag

11 Maly t 12191 F 241191 Kc 54,0


if
2 Mig t 3421g E 2NM3lgl Ko 1,04 10 4
Hey

1 Multiply by
Smug t 312141 E 6Mlly t snag
KE 54,013


1 Reverse
D E t
2NM3Igl Nag 3421g
Kc 41,04 10 4


t E 6M t
2NM3Ig 312141
Iyl 1
Nag
knee KixK2 154,013 1,04 10 9
1,51 109