Results 21 to 30 of about 22,691 (291)

Estimativa por DSC das entalpias de sublimação da etilenouréia e da propilenouréia: algumas correlações empíricas envolvendo amidas e tioamidas Estimative by DSC data of the sublimation enthalpies for ethyleneurea and propyleneurea: some empirical correlations with amides and tioamides

Química Nova, 1999
By using DSC data, the enthaplies of sublimation for ethyleneurea and propyleneurea, are calculated as 84 and 89 kJ mol-1 respectively. Using the vaporization enthalpy values for dimethylethyleneurea and dimethylprophyleneurea, as obtained from ...
Robson Fernandes de Farias
doaj   +1 more source

A high-efficient and salt-rejecting 2D film for photothermal evaporation

iScience, 2023
Summary: The solar-driven desalination is seen as a sustainable way to combat water scarcity. However, the solar steam generation efficiency has long been restricted by the high vaporization enthalpy of water and low energy density of natural sunlight ...
Yiru Su, Lang Liu, Xuechao Gao, Wei Yu, Ye Hong, Chao Liu   +5 more
doaj   +1 more source

Complexing additives to reduce the immiscible phase formed in the hybrid ZnBr2 flow battery [PDF]

, 2017
The zinc-bromine redox flow battery (RFB) is one of a very few commercially viable RFB energy storage system capable of integration with intermittent renewable energy sources to deliver improved energy management.
Berlouis, L., Bryans, D., McMillan, B.G., Spicer, M., Wark, A.   +4 more
core   +1 more source

A numerical model for the fractional condensation of pyrolysis vapours [PDF]

, 2015
Experimentation on the fast pyrolysis process has been primarily focused on the pyrolysis reactor itself, with less emphasis given to the liquid collection system (LCS). More importantly, the physics behind the vapour condensation process in LCSs has not
Gu, Sai, Palla, V. S. Kiran Kumar Palla, Papadikis, Konstantinos   +2 more
core   +1 more source

Empirical method for predicting the enthalpy changes of combustion of amides [PDF]

Journal of the Serbian Chemical Society, 2019
The enthalpy change of combustion is one of the basic thermochemical characteristics of an organic compound, indicating the amount of heat produced in the complete combustion of the substance.
Ryskaliyeva Alma K., Baltabayev Murat E., Abaeva Kurmankul T.   +2 more
doaj   +1 more source

On the computation of moist-air specific thermal enthalpy [PDF]

, 2014
The specific thermal enthalpy of a moist-air parcel is defined analytically following a method in which specific moist entropy is derived from the Third Law of thermodynamics.
Ambaum, Arakawa, Bannon, Bechtold, Betts, Betts, Betts, Bohren, Bougeault, Bretherton, Bretherton, Businger, Catry, Chase, Cuijpers, De Groot, Derbyshire, Dufour, Emanuel, Emanuel, Fagerstroem, Feistel, Fuehrer, Gerard, Glansdorff, Hauf, Iribarne, Jacobsen, Khairoutdinov, Lipiński, Madden, Manzhelii, Marquet, Marquet, Marquet, Marquet, Nagle, Normand, Pauling, Pauluis, Pauluis, Peterson, Richardson, Saunders, Siebesma, Tripoli, Wisniak, WMO, Zdunkowski   +48 more
core   +3 more sources

Thermodiffusion in binary liquids: the role of irreversibility [PDF]

, 2013
We study thermal diffusion in binary mixtures in the framework of non-equilibrium thermodynamics. Our formal result displays the role of partial enthalpies and Onsager's generalized mobilities.
Würger, Alois
core   +2 more sources

Calculation of Five Thermodynamic Molecular Descriptors by Means of a General Computer Algorithm Based on the Group-Additivity Method: Standard Enthalpies of Vaporization, Sublimation and Solvation, and Entropy of Fusion of Ordinary Organic Molecules and Total Phase-Change Entropy of Liquid Crystals

Molecules, 2017
The calculation of the standard enthalpies of vaporization, sublimation and solvation of organic molecules is presented using a common computer algorithm on the basis of a group-additivity method.
Rudolf Naef, William E. Acree
doaj   +1 more source

Comparison of methods for calculating the enthalpy of vaporization of binary azeotropic mixtures

Тонкие химические технологии
Objectives. To calculate the molar enthalpy of vaporization of binary homogeneous mixtures based on isothermal and isobaric vapor–liquid equilibrium data, and to compare the results of calculation of molar enthalpy of vaporization by different methods ...
D. A. Ryzhkin, V. M. Raeva
doaj   +1 more source

Estimation of the volatility distribution of organic aerosol combining thermodenuder and isothermal dilution measurements [PDF]

Atmospheric Measurement Techniques, 2017
A method is developed following the work of Grieshop et al. (2009) for the determination of the organic aerosol (OA) volatility distribution combining thermodenuder (TD) and isothermal dilution measurements. The approach was tested in experiments that
E. E. Louvaris, E. E. Louvaris, E. Karnezi, E. Kostenidou, C. Kaltsonoudis, C. Kaltsonoudis, S. N. Pandis, S. N. Pandis, S. N. Pandis   +8 more
doaj   +1 more source