Page 1252 - Chemistry--atom first

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Appendix G
Standard Thermodynamic Properties for Selected Substances
Substance
(kJ mol–)
(kJ mol–1)
(J K–1 mol–1)
O3(g)
142.7
163.2
238.9
phosphorus
P4(s)
0
0
164.4
P4(g)
58.91
24.4
280.0
P(g)
314.64
278.25
163.19
PH3(g)
5.4
13.5
210.2
PCl3(g)
–287.0
–267.8
311.78
PCl5(g)
–374.9
–305.0
364.4
P4O6(s)
–1640.1
—
—
P4O10(s)
–2984.0
–2697.0
228.86
PO4 3–(aq)
–1277
–1019
–222
HPO3(s)
–948.5
—
—
HPO4 2–(aq)
–1292.1
–1089.3
–33
H2PO4 2–(aq)
–1296.3
–1130.4
90.4
H3PO2(s)
–604.6
—
—
H3PO3(s)
–964.4
—
—
H3PO4(s)
–1279.0
–1119.1
110.50
H3PO4(l)
–1266.9
–1124.3
110.5
H4P2O7(s)
–2241.0
—
—
POCl3(l)
–597.1
–520.8
222.5
POCl3(g)
–558.5
–512.9
325.5
potassium
K(s)
0
0
64.7
K(g)
89.0
60.5
160.3
K+(aq)
–252.4
–283.3
102.5
KF(s)
–576.27
–537.75
66.57
KCl(s)
–436.5
–408.5
82.6
rubidium
Rb+(aq) –246 –282.2 124
silicon
Si(s) 0 0 18.8
Table G1
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