APPENDIXH STANDARDMOLARTHERMODYNAMICPROPERTIES 505
(continued from previous page)
Species
ÅfH
kJ mol ^1
Sm
J K ^1 mol ^1
ÅfG
kJ mol ^1
Hg(l) 0 75. 90 0:12 0
Hg(g) 61. 38 0:04 174. 971 0:005 31.84
HgO(cr, red) 90. 79 0:12 70. 25 0:30 58 .54
Hg 2 Cl 2 (cr) 265. 37 0:40 191. 6 0:8 210 .72
I 2 (cr) 0 116. 14 0:30 0
K(cr) 0 64. 68 0:20 0
KI(cr) 327 .90 106.37 323 .03
KOH(cr) 424 .72 78.90 378 .93
N 2 (g) 0 191. 609 0:004 0
NH 3 (g) 45. 94 0:35 192. 77 0:05 16 .41
NO 2 (g) 33.10 240.04 51.22
N 2 O 4 (g) 9.08 304.38 97.72
Na(cr) 0 51. 30 0:20 0
NaCl(cr) 411 .12 72.11 384 .02
O 2 (g) 0 205. 152 0:005 0
O 3 (g) 142.67 238.92 163.14
P(cr, white) 0 41. 09 0:25 0
S(cr, rhombic) 0 32. 054 0:050 0
SO 2 (g) 296. 81 0:20 248. 223 0:050 300 .09
Si(cr) 0 18. 81 0:08 0
SiF 4 (g) 1615. 0 0:8 282. 76 0:50 1572 .8
SiO 2 (cr, -quartz) 910. 7 1:0 41. 46 0:20 856 .3
Zn(cr) 0 41. 63 0:15 0
ZnO(cr) 350. 46 0:27 43. 65 0:40 320 .48
Organic compounds
CH 4 (g) 74 .87 186.25 50 .77
CH 3 OH(l) 238 .9 127.2 166 .6
CH 3 CH 2 OH(l) 277 .0 159.9 173 .8
C 2 H 2 (g) 226.73 200.93 209.21
C 2 H 4 (g) 52.47 219.32 68.43
C 2 H 6 (g) 83 .85 229.6 32 .00
C 3 H 8 (g) 104 .7 270.31 24 .3
C 6 H 6 (l, benzene) 49.04 173.26 124.54
Ionic solutes
AgC(aq) 105. 79 0:08 73. 45 0:40 77.10
CO 32 (aq) 675. 23 0:25 50. 0 1:0 527 .90
Ca^2 C(aq) 543. 0 1:0 56. 2 1:0 552 .8
Cl (aq) 167. 08 0:10 56. 60 0:20 131 .22
F (aq) 335. 35 0:65 13. 8 0:8 281 .52
