Circular of the Bureau of Standards no. 564:

Hilsenrath, Joseph; Benedict, W. S.; Fano, L.; Hoge, Harold J.; masa, Joseph F; Nuttall, Ralph L.; Touloukian, Y. S.; Woolley, Harold W.

doi:10.6028/nbs.circ.564

Cited by 41 publications

(13 citation statements)

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“…The integration was done graphically" As a check on the reliability of the specific volume data, the compressibility factor, Z = £L5 RT was calculated. The isotherms of Z were found to behave correctly, extrapolating to Z = 1 as the pressure approached zero 0 These compressibility factors also agreed within 0.3 percent with those given by Hilsenrath (1955) -195795 -195138 -194431 -193698 -193006 -192785 -192625 -192635 -192812 -192812 -193106 -193427 -192987 -192579 -192200 -191819 -191744 -191204 Soc. 37, 134, (1954).…”

Section: Properties Of Cog and H^o At Higher Pressuressupporting

confidence: 63%

Thermodynamic properties of selected minerals and oxides at high temperatures

Robie¹

1959

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Section: Properties Of Cog and H^o At Higher Pressuressupporting

confidence: 63%

Thermodynamic properties of selected minerals and oxides at high temperatures

Robie¹

1959

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“…2, R2, R9, RIO, R12-RI5). Among them, the reviews by Hilsenrath and Touloukian (1954), R2 by Vasserman etal. (1966),2byTPRC (1970,R14 and by Vargaftik, Filippov, Tarzimanov, and Totskii (1978)R15 cover a wide range of temperature.…”

Section: General Remarksmentioning

confidence: 99%

Viscosity and Thermal Conductivity of Dry Air in the Gaseous Phase

Kadoya¹,

Matsunaga²,

Nagashima³

1985

Journal of Physical and Chemical Reference Data

272

109

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In view of the importance of air in science and technology and the abundance of experimental data, we present in this report a consistent set of critically evaluated data and an up-to-date correlation of the viscosity and the thermal conductivity of air in the gaseous phase over a wide range of temperature and pressure. This is especially important for the viscosity, since the recent data show systematic differences compared with the old standard value used for many years. The present paper was written in order to document the critical evaluation of the latest data sets and to present a new set of correlations of the viscosity and the thermal conductivity of air. The range covered is from 85 to 2000 K for temperature and up to 100 MPa for pressure.

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“…, for Ba1r [1 ], of Friedman for B N2 [3 ], and th e t abulation of Hilsenrath et aI. , for B 02 [6], th e N 2 :0 2 interaction second vil'ial coefficients as a function of t emperature may b e calculat ed from eq (6) . These ar e The potent ia l ener gy curves for oxygen-oxygen interactions an d fo r ni trogennitrogen interac tions a re indicated by tbe dashed lines .…”

mentioning

confidence: 99%

“…, for B 02 [6], th e N 2 :0 2 interaction second vil'ial coefficients as a function of t emperature may b e calculat ed from eq (6) . These ar e…”

mentioning

confidence: 99%

“…If we assume that the intermolecular forces of th e pure constitu ents of dry air (N 2 , O2, and A) can be described b y a L ennard-Jones model, then we may d efine pseudoforce constants for the air mixture: (d )02= 3.46A [5] (d)A= 3 .42 A , [6 ] then , from eq (2) and (3 ), (Eo/k)a1r = 100.8° and ba1 r= 60.82 cm 3 /mole . These 6-12 L ennard-Jones pseudoforce constan ts can th en b e used to compu te th e valu es of th e second v irial coefficien ts for air at variou s temp eratures.…”

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confidence: 99%

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Intermolecular forces in air

Friedman¹

1957

J. RES. NATL. BUR. STAN.

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Th e in termol ecul ar force constants for a 6-12 Le nn ard-Jones potent ial model ha ve been co mpu ted [or a il' from second viri ai coeffici ents d erived from exp erimental pressure-volumetemperat ure m ea surements. Ni tro ge n : oxyge n intera ction second virial coeffi cie nts a nd in teraetion f01;ce constan ts have also been derived.The following symbols are used throughout the paper: Z = Compress ibili ty factor , P v/ RT, dimensionless. p = Absolu te press ure. V = Molar volume, cm3/ mole. R = Uni versa l gas cons ta nt, in uni ts of P v/T . T = Absolute te mperature. The t ri ple poin t of water is d efin ed as T = 273 .16°K. B = beco nd viri al coeffi cien t, em 3/ mole. C = Third virial coeffi cient, cmo/ mole 2. D = F our t h viria l coeffi cient, cm 9/ mo le 3. E = Fifth viria l coeffi cien t , cm 12/mole '. '0 = M ax imum energy of bin d in g between a pa il' o f molec ules wit h a L ennard-J ones po tent ia l. k = Boltz ma nn's co nsta nt . • = P okl ntial energy of t wo interacting molec ules. 1' = Sepa rat ion be t wee n cen ter s of t wo inter actin g molec ules. ro = Coll is io n di a meter of a pail' of molec ules at max imum e ne rgy, '0, of Lenn ard-Jones in teraction.Compressibility factors for dry ail' have b een d et er mined exp erim en t ally and ar e r eported elsewher e [1 ].2 B~r fitting the P-v-T data to a K am erlingh -Onnes vi rial equation of stat e the virial coefficients B , 0, D , and E wer e determined at various temp eratures in the r egion b etween the critical and 0° C. These are tabulat ed in t able 1.The second virial coefficients of nonpolar mixtures can b e d erived, to a good approximation, from the force constants of the pure components [2 , 3]. If we assume that the intermolecular forces of th e pure constitu ents of dry air (N 2 , O2, and A) can be described b y a L ennard-Jones model, then we may d efine pseudoforce constants for the air mixture: then , from eq (2) and (3 ), (Eo/k)a1r = 100.8° and ba1 r= 60.82 cm 3 /mole .These 6-12 L ennard-Jones pseudoforce constan ts can th en b e used to compu te th e valu es of th e second v irial coefficien ts for air at variou s temp eratures. The values thus compu ted ar e in good agr eem en t with the experimen t ally d et ermined second virial coefficien ts [1].T able 2 compares th e calculated and exp erimen tal v alu es of B.The second virial coefficien t of a binar y gas mixture can b e expressed in terms of th e second virial coefficients of th e constitu en t gases and an interaction coefficient r elated to collisions of th e unlike molecules .vVe may then write fo r air, not ing that BJ 2= B21'Rearranging:Using t h e P-v-T dat a of Friedman et aI. , for Ba1r[1 ], of Friedman for B N2 [3 ], and th e t abulation of Hilsenrath et aI. , for B 02 [6], th e N 2 :0 2 interaction second vil'ial coefficients as a function of t emperature may b e calculat ed from eq (6) . These ar e

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Circular of the Bureau of Standards no. 564:

Cited by 41 publications

References 0 publications

Thermodynamic properties of selected minerals and oxides at high temperatures

Thermodynamic properties of selected minerals and oxides at high temperatures

Viscosity and Thermal Conductivity of Dry Air in the Gaseous Phase

Intermolecular forces in air

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