摘要:

An integral equation is first set up which allows the osmotic pressure to be calculated from knowledge of (a) the concentration fluctuations and (b) the equations of state of the two pure liquids 1 and 2 which are constituents of the binary 1-2 mixture. The method is illustrated by approximate numerical calculations on a variety of liquid binary mixtures, including Na-Ga and Na-Cd under pressure.

ISSN:0031-9104    

DOI:10.1080/00319108608078478

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

Motivated by the prediction of the Percus-Yevick hard sphere solution that, for dense liquids, the ratioR = c(r=0)/c(q= 0) is very near to unity,c(r)being the direct correlation function andc(q)its Fourier transform, this ratio has been calculated from diffraction plus thermodynamic data for some fifteen liquid metals near their freezing points. It is found that 0.2 <R <1.3, but for the liquid alkalis, the noble metals and the first row transition metals chosen,Ris near to unity. This is to be contrasted withR ≈ 2for liquid argon near the triple point.

ISSN:0031-9104    

DOI:10.1080/00319108608078479

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

In solution, solute molecules B are coupled by attractive forces between them and all other molecules present; and these other molecules enhance the tension in the coupling force between solute molecules an amount πB, the osmotic pressure of the solution solute. Two equilibria determine thenoBmoles of pure solute which dissolve inn10Amoles of pure liquid solvent. If atTthe solute is solid and in excess, then 1) thenBlsatmoles of B in thenlAmoles of A in a solution saturated with B are in thermodynamic equilibrium with the solid solute at the sameTandpand 2) thenBlsatmoles of B andnlAmoles of A may also be in chemical equilibrium with the moles of new molecular or ionic species formed in the solution. Solute molecules dissolve until the chemical potential of the solution solute, plB(Tp, xBlsat), equals the chemical potential of pure solid solute at the sameTandp, μBso(T,p). When the solution is saturated with B and the mole fraction of B is xBlsat=nBlsat/σjn1j, then the vapor pressures of the solid solute atTandp, the solution solute atTandp, and the pure undercooled liquid solute atTandp-πBlsatare identical. If atTthenBlomoles of pure solute and thenlAmoles of pure solvent are liquids, then if molecules of B are allowed to dissolve in A while molecules of A are dissolved in B, the resulting solutions may 1) contain only molecules of A and B or 2) contain A and B which also react to form other ionic and molecular species. The two solutions may be identical or they may differ. In all cases, however, the mole ratio ofnlBnlAin both solutions must be identical.

ISSN:0031-9104    

DOI:10.1080/00319108608078480

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

New experimental data for excess volume and sound velocity in binary liquid mixtures of 1,2-dibromoethane with methyl ethyl ketone, diethyl ketone, methyl propyl ketone, methyl isobutyl ketone, cyclopentanone and cyclohexanone at 303.15 K have been reported. The results have been analysed in terms of free length theory (FLT) and collision factor theory (CFT). Molar sound velocity(R), molar compressibility(W)and van der Waals constant(b)have also been computed. The sound velocity data were also used along with densities to compute isentropic compressibilities(ks). The excess volumes(VE)and the deviation in isentropic compressibilities (Δks) are used to understand the interactions between unlike molecules.

ISSN:0031-9104    

DOI:10.1080/00319108608078481

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

The magnetic behaviour of the liquid system Ge-Te has been determined with the help of susceptibility measurements. Two pronounced minima have been observed indicating the persistence of locally ordered regions in the liquid state. The minimum at the equiatomic composition, although markedly decreasing with increasing temperature, persists up to at least 1330 K. The second minimum located at the eutectic composition (85 at%Te) was found to be extremely temperature dependent and disappeared within 100 K above the eutectic temperature. A theoretical treatment has been attempted within the framework of the free electron approximation.

ISSN:0031-9104    

DOI:10.1080/00319108608078482

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

The Gibbs-Bogoliubov variational method is applied to a simple liquid using a charged-hard-sphere system as a reference system. Simple expressions are derived for the entropy and the pressure.

ISSN:0031-9104    

DOI:10.1080/00319108608078483

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

We have measured the interfacial tensions, vs. oil and brine, the electric conductivity and the magnetic susceptibility of microemulsions as a function of brine concentration and temperature.

ISSN:0031-9104    

DOI:10.1080/00319108608078484

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:0031-9104    

DOI:10.1080/00319108608078477

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor