le chatelier's principle name - ms. ose's chemistry...
TRANSCRIPT
Le Chatelier's Principle states that when a system at equilibrium issubjected to a stress,thesystem will shift its equilibrium point in order to relieve the stress.
Complete the following chart by writing left, right or none for equilibrium shift, anddecreases, increases or remains the same for the concentrations of reactants andproducts, and for the value of K.
N2(g) +. 3H2(g) ~ 2NH3(g) + 22.0 kcal
I
fLECHATELIER'S PRINCIPLE Name ---------
Stress
Equilibrium
[N2l[H2l[NH3lKShift
,Add N2
remains the1. right
-decreasesincreasessame. ~2,
Add H2
3,
Add NH3
4.
Remove N2
5.
Remove H2
6.
Remove NH3f
7.
IncreaseTemperature
8.
DecreaseTemperature
,
9.
IncreasePressure
~
10. DecreasePressure
Chemistry IF8766 81 ©Instructional Fair. Inc.
LE CHATELIER'S PRINCIPLECONTINUED
Name _
12.6kcal + H/g) + 12(g) ~ 2HI(g)
StressEquilibrium[H2]
[12][HI]KShift
1.
Add H2 right decreasesincreasesremains the
same2.
Add 12
3.
Add HI
4.
RemoveH2
5.
Remove'2
6.
Remove HI
7.
Increase
Temperature8.
Decrease
Temperature9.
IncreasePressure
10.
DecreasePressure
NaOH(s) ~Na+(aq) + OH-(aq) + 10.6kcal(Remember that pure solids and liquids
do not affect equilibrium values,)
Stress
EquilibriumAmount[Na+][OH-]KShift NaOH(s)
1.
Add NaOH(s)
2,
Add NaCi
(Adds Na+)-
3.Add KOH
(Adds OH-)4,
Add H+
(Removes OH-)5,
Increase
Temperature6.
Decrease
Temperrture7.
Increase Pressure
8,
Decrease Pressure
Chemistry IF8766 82 ©Instructional Fair, Inc.
LE CHATELIER'S PRINCIPLE Name _
Le Chatelier's Principle states that when a system at equilibrium is subjected to a stress, thesystem will shift its equilibrium point in order to relieve the stress.
Complete the following chart by writing left, right or none for equilibrium shift, anddecreases, increases or remains the same for the concentrations of reactants andproducts, and for the value of K,
N2(g) +. 3H2(g) ~ 2NH3(g) + 22.0 kcal
Stress
Equilibrium
[N2][H2][NH3]KShift
1.
Add N2remains the
right
-decreasesincreasessame~
2.Add H2 r/~ktJ. e c T'ea.~e5 illcre.a5SSCLi'Vle.
/eJ;i-
,,3, Add NH3 /11 C r,t.."rJ G!'-, Sam.eJ
/ e +-t
\
de Cr',4. Remove N2 (,11 Cr.Sa J'l'1. e...
I
Jeef'.5. Remove H2 I e -ft-L 11 C r-, Same
6,
Remove NH3r/jAtjee,.dee, SO-m€-
7.
IncreaseIe ·9t
.'"
d e.c,dee.Temperature
L 11 cf'.LYI Cf'.
8.
Decrease
r-13~tdee.lee.\
'" ?11 C ,Temperature011 C ,
9.
Increase
r 13 Aide-c,dee..
Pressure6rLC,Sa rvze-
~
.jec.10.
DecreaseIe-fi-~
Sa..m~(IlC I0/1 C.
Pressure
Chemistry IF8766 81 ©Instructional Fair. Inc.
LECHATELIER'S PRINCIPLECONTINUED
Name _
12.6 kcal + H2(g) + 12 (g) ~ 2HI(g)
StressEquilibrium
[H2][12][HI]K
Shift
1.
Add H2 right decreasesincreasesremains thesame
2.Add 12 ({'l1ktDe.e... J:ne-Sa..r'Yle- J:ftC
3. Add HI Left J:-1lC.Sa..yne4.
Remove H2 Le- f-t J--rfe-DuSet... y'Yl e5.
Remove 12 L-e-0tr nc- De-e-Set.. f'Yte..
6.
Remove HI j(,~ ~tDee-Dee Sq,;'Y'\e
7.
Increase
f(l(jht{)ee-/)e..cJ:.-1'tC--:r;- ne-Temperature
8.
DecreaseLe(;t:;: (lCr~C-D e-c.DeeTemperature
9.
IncreaseAJ~neSCCfY'e.~~€..se.t ;'Y\.e..$Q.filePressure
10,
DecreaseIV tJt1.e5QI'Yte....Sa-m.ega..;')'l€...~CLhle..Pressure
NaOH(s) ~. Na+(aq) + OH-(aq) + 10.6 kcal(Remember that pure solids and liquids
do not affect equilibrium values,)
Stress
EquilibriumAmount[Na+][OH-]KShift NaOH(s)
1.
Add NaOH(s) /IItl/l e 5c~_YYl e...So-.rYle.SCA rv"\e2.
Add NaelI-e-f-i:
.-De-cSaV>1e(Adds Na+)
J-/tC-
3.
Add KOHLef-tf/tc-IJ ec. Sa.~e(Adds OH-)
4.
Add H+
I< '9 AtDe-G;; I1C So.. VVLe(Removes OH-)5.
Increase
f{ 'Sh-/:;J:/lCD e.c,Oe.c!Je.e-Temperature6,
Decrease
I< ICJlt-tDee:J-11C-J:-/1C]:.tlC/Temper~ture7,
Increase PressureN&l1eSa..~5 ctJY\ e..-5 (AW\€.5a..V"'te
8,
Decrease PressureAi ~rze-5CLM~Sa.W'"1eS D.yYleSft-n1e.
Chemistry IF8766 82 ©Instructional Fair, Inc,