Showing papers on "Standard molar entropy published in 1970"
TL;DR: In this paper, the cubic region and the values of x and y in Mg y U 1− y O 2+ x were studied under various reaction conditions and the variation of lattice constant with composition was observed to follow a linear equation, a 0 = 5.4704−0.1170x−0·5677 y.
43 citations
TL;DR: It was found that the 2-amino derivatives are 3-kcal./mole more stable with respect to ΔH than the adenosine derivatives at their respective melting temperatures, T m .
42 citations
TL;DR: The real standard entropy of ions in water is calculated from the temperature coefficient of the outer potential difference between a solution and the metal phase of an electrode reversible to one of the ions in the solution as mentioned in this paper.
Abstract: The real standard entropy of ions in water is calculated from the temperature coefficient of the outer potential difference between a solution and the metal phase of an electrode reversible to one of the ions in the solution. Sone related real single-ion thermodynamic properties are derived; the value of the temperatures coefficient of the surface potential of water has been evaluated to within ±40 µV K–1.
17 citations
TL;DR: The behavior of the isosteric heat of adsorption and the partial molar entropy of submonolayer He4 on these substrates is presented and discussed in this article.
Abstract: We have made adsorption measurements of He4 on a copper sponge preplated with a series of noble-gas layers. The behavior of the isosteric heat of adsorption and the partial molar entropy of submonolayer He4 on these substrates is presented and discussed. The general behavior is of a rapid decrease in the average entropy of the helium as helium coverage is increased, on all substrates. Changing the substrate seems only to change scaling factors in the behavior of the helium film.
6 citations
TL;DR: In this article, the standard formation enthalpy and standard entropy of BHCl2 were obtained as ΔH °298 = −63,000 ± 2,500 cal and S ° 298 = 61.9 ± 2.5 e.u.
Abstract: In the temperature range 700 °–850 °C, BCl3-H2 mixtures give BHCl2 and HClas the only gaseous products. Analysis of equilibrium gas mixtures gave equilibrium constants from which the standard formation enthalpy and standard entropy of BHCl2 were obtained as ΔH °298 = −63,000 ± 2,500 cal and S °298 = 61.9 ± 2.5 e.u.
5 citations
TL;DR: A lambda anomaly at 165 K has been observed in the heat capacity versus temperature curve for methylammonium chromium alum as discussed by the authors, which corresponds to the cessation of rotation of the methymmonium groups.
1 citations