Results 21 to 30 of about 1,123,379 (326)
Chemical Equilibrium in Collisions of Small Systems [PDF]
, 2007 The system-size dependence of particle production in heavy-ion collisions at the top SPS energy is analyzed in terms of the statistical model. A systematic comparison is made of two suppression mechanisms that quantify strange particle yields in ultra ...
C. Slotta +6 more
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Chemistry Teacher International, 2021 A crucial step in problem solving is the retrieval of already learned schemata from long-term memory, a process which may be facilitated by categorization of the problem.
Bakolis Antonios +2 more
doaj +1 more source
Development of student’s initial ability test based on generic science skills
Jurnal Inovasi dan Teknologi Pembelajaran, 2023 : Penelitian ini bertujuan untuk mengembangkan instrumen tes kemampuan awal berbasis keterampilan generik sains pada materi kesetimbangan kimia. Penelitian ini menggunakan model pengembangan 4D yaitu Define, Design, Development dan Disseminate. Instrumen
Natalia Valentina Pane +1 more
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Experimental and Modeling Analysis of Brewers´ Spent Grains Gasification in a Downdraft Reactor
Energies, 2019 The first part of the current reported work presents experimental results of brewers’ spent grains gasification in a pilot-scale downdraft gasifier.
Sérgio Ferreira +5 more
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Center for Educational Policy Studies Journal, 2023 The main goal of this study was to validate the strategy for the assessment of the cognitive complexity of chemical kinetics exam items. The strategy included three steps: 1) assessment of the difficulty of concepts, 2) assessment of distractor value ...
Saša Horvat +4 more
doaj +1 more source
The nature of the potassium compound acting as a promoter in iron-alumina catalysts for ammonia synthesis [PDF]
, 1975 The chemical form of the potassium promoter on an iron-alumina catalyst during ammonia synthesis has been studied by two methods, viz, (i) the measurement of the equilibrium constant of the process KNH2 + H2 KH + NH3, and (ii) chemical analysis of the ...
Bolink, W.J. +3 more
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Effect of Vibrational Excitation on the Theoretical Performance of the Stoichiometric Carbon-Oxygen Propellant System [PDF]
, 1952 Accurate calculations to evaluate the performance of the stoichiometric carbon-oxygen propellant system have been carried out for nozzle flow with and without chemical reactions and with and without vibrational adjustment. The calculations show that, for
Schroeder, J. H.
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DISTRIBUTION OF SOLUBLE AND INSOLUBLE CHEMICAL SPECIES OF CHROMIUM (III) AND (VI) IN AQUEOUS SOLUTIONS [PDF]
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2014 On the basis of currently revised thermodynamic data for Cr(III) and Cr(VI) hydrolysis and photolytic equilibria in addition to original thermodynamic and graphical approach, used in this paper, the repartition of their soluble and insoluble chemical ...
Oxana Spinu
doaj
Equilibrium relationships for non-equilibrium chemical dependencies
, 2010 In contrast to common opinion, it is shown that equilibrium constants determine the time-dependent behavior of particular ratios of concentrations for any system of reversible first-order reactions.
Constales, Denis +2 more
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Early quark production and approach to chemical equilibrium [PDF]
, 2016 We perform real-time lattice simulations of out-of-equilibrium quark production in non-Abelian gauge theory in 3+1-dimensions. Our simulations include the backreaction of quarks onto the dynamical gluon sector, which is particularly relevant for strongly
Berges, J., Gelfand, D., Hebenstreit, F.
core +2 more sources