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preface to fifteenth edition

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THERMODYNAMIC PROPERTIES 6.129<br />

TABLE 6.4<br />

Heats of Fusion, Vaporization, and Sublimation and Specific Heat at Various Temperatures of<br />

the Elements and Inorganic Compounds (Continued)<br />

C p<br />

Substance Hm Hv Hs<br />

400 K 600 K 800 K 1000 K<br />

GaCl 3 11.13 23.9<br />

GaI 3 12.9 56.5<br />

Ga 2 O 3 100 91.4 112.5 133.5<br />

GaSb 25.1<br />

Germanium<br />

Ge, Ht 37.03 938.3 36.94 334 24.3 25.4 26.2 26.9<br />

GeBr 4 41.4<br />

GeCl 4 27.9 100.7 104.6 106.1 106.8<br />

GeH 4 14.1<br />

Ge 2 H 6 25.1<br />

Ge 3 H 8 32.2<br />

GeO 2 43.9 61.39 69.1 72.4 75.0<br />

Gold<br />

Au 12.55 324 25.8 26.8 27.8 28.8<br />

AuSn25.6 54.1 63.3(c) 60.6(lq)<br />

Hafnium<br />

Hf, Ht 5.9 1750 27.2 571 618.4 26.7 28.6 30.3 31.9<br />

HfCl 4 75 99.6 125.4 105.8 106.7 107.1<br />

HfO 2 , Ht 10.5 1700 104.6 67.7 73.9 77.3 79.9<br />

Helium<br />

He 0.0138 0.0829 20.79 20.79 20.79 20.79<br />

Holmium<br />

Ho 16.8 71 280 317<br />

Hydrogen<br />

H 2 0.117 0.904 29.2 29.3 29.6 30.2<br />

1<br />

H 2 H 29.2 29.4 29.9 30.7<br />

2<br />

H 2 29.2 29.6 30.5 31.6<br />

HBO 2 14.3 242.1 61.5(c)<br />

H 3 BO 3 22.3<br />

HBr 2.406 17.61 12.7 29.2 29.8 31.1 32.3<br />

HCl, Ht 1.188 174.77 1.992 16.14 9.1 19.2 29.2 29.6 31.6<br />

2<br />

HCl 29.4 30.6 32.1 33.5<br />

HClO 40.0 44.0 46.6 48.5<br />

HCN 8.406 25.22 39.4 44.2 47.9 51.0<br />

HF 4.58 29.1 29.2 29.5 30.2<br />

2<br />

HF 29.2 29.5 30.5 31.6<br />

H 2 F 2 dimer 49.7 56.5 61.0 64.4<br />

HFO 38.6 42.8 45.7 47.9<br />

HI 2.87 19.77 17.4 29.3 30.3 31.8 33.1<br />

HNCO isocyanic acid 50.6 58.3 63.5 67.5<br />

HNCS isothiocyanic acid 53.2 61.0 65.9 69.3<br />

HNO 2 cis 51.4 59.9 65.4 69.2<br />

trans 52.1 60.3 65.6 69.3<br />

HNO 3 10.47 39.46 39.1 63.1 76.8 85.0 90.4<br />

HN 3 30.5<br />

H 2 O 6.009 40.66 44.0 34.3(g) 36.4 38.8 41.4<br />

1<br />

H 2 HO 34.8 37.5 40.4 43.3<br />

2<br />

H 2 O 35.6 38.8 42.2 45.4<br />

H 2 O 2 12.50 51.63 48.5 55.7 59.8 66.7<br />

2<br />

H 2 O 2 12.68 52.4

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