a2AlN22AlN
solutio
bH152940calmolcS4822677245774967calmolKdH152940calmolS4822677245778314l
106881calmolK
Solutio
：Cu2OH2CuH2O
exothermicreactio

H592104190017310calmol
fForthereactio

12
H
2
g

H
g
1
3
1
Cp
CPHg
2CPH2

8314313035
2
2
H
o2000

H
o298

2000
298CPdT

H
o298

CP
2000298
21799030351702212824J
H
o2000

H
o298

2000
298CPdT

H
o298

CP
2000
298
21799030351702212824J
S
o2000

S
o298

2000
298CPdT

S
o298

CP
l

2000298
49353035l
20004357J298
G20000

H
02000

TS
02000
212824
20004357
125684
J
G2o000
RTl
K
RTl

PHgP12
H2
RTl

P12H2
PHg
RTl

P12H2
125684l

P12H2

125684
756
PHg
PHg83142000
fPH2gPH2g1PH21
l

1PHg
7562PH
00005atm
Solutio
aWhe
theequilibriumisreached
GGo
RTl
J

Go－
12
RT
l

PO2
0
l

PO2

418398501506T1
RT
2
T500C773K
l

PO2

418398501
1506773

3669
8314773
2
PO21141026atm
aatT300C573K
AlthoughtheequilibriumPO2isverylowki
eticallythereactio
is
f
otfavoureda
dreactio
speedisveryslowSo300Cis
otsuitableat
AtT800C1073Kl
PO2222PO22281010atmAt800Ciftheequilibriumisreached
itroge
ca
beofhighpuritylevelHoweveratthishightemperatureparticlesofCuwillweldtogethertoreduceeffectiveworksurfaceSoitis
otsuitabletousethishightemperaturei
purificatio
eithercTheequilibriumoxyge
pressureremai
sthesamewhe
thetotalpressurei
creaseswhichmea
sahigherpuritylevelofN2
Solutio

N22NH22H
，11
N

K
2aN
PN
22
11
H

K
2aH
PH
22

ForN2dissolvi
g
fFor
H2
dissolvi
g：
HP12
H2

HPH212
（a）Fordissolvi
gN2PN21atmN35cm3100gmelt
N‘PN212N3505122475cm3100gmeltP12
N2
similarlyH’2475cm3100gmelt
totalgasH＋N495cm3100gmelt
bH2475cm3100gmelt
cH＋N
NN
P12N2
PN212
120102010402cm3100gmelt
N03312
1H03312
Solutio
：（1）02H
（2）WmaxG
（3）
fGGKTl
kGRTl

PPr