Topic
Standard molar entropy
About: Standard molar entropy is a research topic. Over the lifetime, 1586 publications have been published within this topic receiving 29886 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: The thermal expansion coefficient, molecular volume, standard entropy, and lattice energy of pure ionic liquid n-butylammonium nitrate (N4NO3) and its binary mixtures with methanol, ethanol, 1-propanol, and 1-butanol were derived from the experimental density results as discussed by the authors.
58 citations
TL;DR: In this article, the heat capacity of nickel chromite (NiCr2O4) was measured between 8 and 381 K using adiabatic calorimetry, and some thermochemical functions [CP(T, S(T), S°298, H(T)−H(0)] were derived from the results.
Abstract: The hitherto unknown low-temperature heat capacity of nickel chromite (NiCr2O4) was measured between 8 and 381 K using adiabatic calorimetry, and some thermochemical functions [CP(T), S(T), S°298, H(T)−H(0)] were derived from the results. The standard entropy (S°298=140.0 ± 0.3 J mol−1 K−1) for nickel chromite was calculated from the results. Our calorimetric measurements indicate three major anomalies in the heat-capacity curve at temperatures between 8 and 381 K. A short literature review indicates that two of these anomalies can be accounted for, whereas an anomaly peaking at 29 K has not been reported previously.
58 citations
TL;DR: In this paper, powder X-ray and neutron diffraction together with thermogravimetric and chemical titration analysis were performed to characterize praseodymium and neodymmium manganates.
58 citations
TL;DR: In this article, high-temperature water soluble fractions of locust bean gum with average galactose contents of 15.2% and 16% w/w displayed conventional gelling behavior.
Abstract: High-temperature water soluble fractions of locust bean gum with average galactose contents of 15.2% and 16% w/w displayed conventional gelling behavior. Gel properties were dependent on galactose content, gelling temperature and concentration. The gels appeared elastic, failed at up to 150% strain, and exhibited true gellike character with long-lived cross-links. Rheological meltdown occurred over a broad temperature range, and the gels melted at temperatures between 100 and 110 °C. Cascade analysis of the storage modulus vs concentration data gave critical gelling concentrations, Co = 0.14−0.24% w/w after 3 months gelation, but this analysis was unable to uniquely determine the number of potential cross-linking forming sites per molecule, i.e., the functionality, f. A value of f = 5, as well as average values of the standard molar enthalpy, ΔH° = −99.6 kJ/mol and standard molar entropy, ΔS° = −0.201 kJ/(mol K), for cross-link formation, was subsequently determined through an extension of the cascade for...
58 citations
TL;DR: In this article, large scale quantum calculations for molar enthalpy of formation (Delta(f) H-0, standard entropy (S-0), and heat capacity (C-V) are presented.
Abstract: Large scale quantum calculations for molar enthalpy of formation (Delta(f) H-0), standard entropy (S-0), and heat capacity (C-V) are presented. A large data set may help to evaluate quantum thermoc ...
58 citations