Results 31 to 40 of about 1,129,189 (269)

Variación del grado de avance de reacción en sistemas cerrados en equilibrio químico que modifican la temperatura a volumen constante

open access: yesQuímica Nova, 2011
In this paper it is presented a thermodynamic analysis that aims to find the mathematical expression of the variation of extent of reaction with the infinitesimal variation in the temperature at constant volume of a chemical equilibrium mixture. The goal
Joan Josep Solaz-Portolés
doaj   +1 more source

Equilibrium relationships for non-equilibrium chemical dependencies

open access: yes, 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
core   +1 more source

Application of Augmented Reality for Learning Material Structures and Chemical Equilibrium in High School Chemistry

open access: yesSystems, 2022
Material structures and chemical equilibrium are important learning units in high school chemistry. In this study, an augmented reality (AR) system is developed to assist high school students in learning chemistry.
Wernhuar Tarng   +2 more
doaj   +1 more source

Simulação do equilíbrio: o método de Monte Carlo Equilibrium simulation: Monte Carlo method

open access: yesQuímica Nova, 2007
We make several simulations using the Monte Carlo method in order to obtain the chemical equilibrium for several first-order reactions and one second-order reaction. We study several direct, reverse and consecutive reactions.
Alejandro López-Castillo   +1 more
doaj   +1 more source

Development of Flipped Guided Inquiry Learning (FGIL) System Using Discord Application on Chemical Equilibrium

open access: yesJurnal Paedagogy, 2023
This study aims to develop and analyze the validity and practicality of the Flipped Guided Inquiry Learning (FGIL) system using Discord application on chemical equilibrium.
Restu Ananda   +2 more
doaj   +1 more source

Aerodynamic Design of a Laval Nozzle for Real Gas Using Hodograph Method

open access: yesAerospace, 2018
We propose an approach for the design of the subsonic part of plane and axisymmetric Laval nozzles for real gases. The proposed approach is based on the hodograph method and allows one to solve the inverse design problem directly.
Aleksandr Chikitkin   +3 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Non-equilibrium effects on particle freeze-out in the early universe [PDF]

open access: yes, 1999
We investigate the possible effects that deviations from kinetic equilibrium can have on massive particles as they decouple from chemical equilibrium.
Hannestad, Steen
core   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

From Steam Engines to Chemical Reactions: Gibbs’ Contribution to the Extension of the Second Law

open access: yesEntropy, 2016
The present work analyzes the foundations of Gibbs’ thermodynamic equilibrium theory, with the general aim of understanding how the Second Law—as formulated by Clausius in 1865—has been embodied into Gibbs’ formal system and extended to processes ...
Emilio Marco Pellegrino   +2 more
doaj   +1 more source

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