Physical Chemistry Third Edition

1224 A Tables of Numerical Data

Table A.8 (continued)

Quantities

TC◦V,m S◦m −

G◦m−Hm,298◦

T

Hm◦−Hm,298◦ ∆fH◦ ∆fG◦

Units

KJK−^1 mol−^1 JK−^1 mol−^1 JK−^1 mol−^1 kJ mol−^1 kJ mol−^1 kJ mol−^1

Sn^2 +(ao)

(μ(NaClO 4 ) = 3.0)

298 − 17 − 8. 8 − 27. 2

Sn^4 +(ao)

(in HCl+∞H 2 O)

298 − 117 30. 52. 5

Zn(cr)

0 − 5. 669

298 25. 287 41. 717 0 0 0

Zn^2 +(ao)

298 46 − 112. 1 − 153. 89 − 147. 06

ZnO(cr)

298 40. 25 43. 64 − 348. 28 − 318. 30

sphalerite, ZnS(cr)

298 46. 057. 7 − 205. 98 − 201. 29

wurtzite, ZnS(cr)

298 − 192. 63

From M. W. Chase, Jr., C. A. Davies, J. R. Downey, Jr., D. J. Frurip, R. A. McDonald, and A. N. Syverud,JANAF Thermochemical Tables, 3rd ed.,

J. Phys. Chem. Ref. Data, Vol. 14, 1985, Supplement No. 1, published by the American Chemical Society and the American Institute of Physics for the

National Bureau of Standards; D. D. Wagman, W. H. Evans, V. B. Parker, R. H. Schymm, I. Halow, S. M. Bailer, K. L. Churney, and R. L Nuttall,The

NBS Tables of Chemical Thermodynamic Properties—Selected Values for Inorganic and C 1 and C 2 Organic Substances in SI Units,J. Phys. Chem. Ref.

Data., Vol. 11, 1982, Supplement No. 2, published by the American Chemical Society and the American Institute of Physics for the National Bureau of

Standards.

In the case of small discrepancies between Chaseet al., and Wagmanet al., the values from Chaseet al., have been taken. Values for organic

substances with more than two carbons are from D. R. Stull, E. F. Westrum, and G. C. Sinke,The Chemical Thermodynamics of Organic Compounds,

Wiley, New York, 1969, or from M. Kh. Karapet’yants and M. L. Karapet’yants,Thermodynamic Constants of Inorganic and Organic Compounds,

Humphrey Science Publishers, Ann Arbor, MI, 1970.

Abbreviations: crcrystal; lliquid; ggas; aoaqueous, molality standard state without (further) ionization; aiaqueous, molality standard

state with ionization; amamorphous.