Results 211 to 220 of about 50,405 (263)
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2021
This chapter details how thermodynamics can be used to predict different types of behaviour and determines whether or not reactions will occur and under what conditions their yields can be maximized. Spontaneous reactions are those that, once started, will continue without any outside intervention and spontaneous processes and move towards their ...
Andrew Burrows +6 more
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This chapter details how thermodynamics can be used to predict different types of behaviour and determines whether or not reactions will occur and under what conditions their yields can be maximized. Spontaneous reactions are those that, once started, will continue without any outside intervention and spontaneous processes and move towards their ...
Andrew Burrows +6 more
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2013
Contents Gibbs energies of formation 633 Brief illustration 65.1: The reaction Gibbs energy 634 Example 65.1: Calculating a standard Gibbs energy of formation from partition functions 634 Ions in solution 635
Peter Atkins +2 more
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Contents Gibbs energies of formation 633 Brief illustration 65.1: The reaction Gibbs energy 634 Example 65.1: Calculating a standard Gibbs energy of formation from partition functions 634 Ions in solution 635
Peter Atkins +2 more
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1995
This chapter addresses Gibbs energy, which is sometimes referred to as free energy, or as Gibbs free energy. Changes in Gibbs energy are more useful in chemistry because they determine whether reactions are energetically favourable. The second law of thermodynamics states that, in a spontaneous process, the change in entropy is equal to or greater than
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This chapter addresses Gibbs energy, which is sometimes referred to as free energy, or as Gibbs free energy. Changes in Gibbs energy are more useful in chemistry because they determine whether reactions are energetically favourable. The second law of thermodynamics states that, in a spontaneous process, the change in entropy is equal to or greater than
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Constrained Gibbs energy minimisation
International Journal of Materials Research, 2007Abstract Computation of chemical equilibria and phase diagrams for multi-phase and non-ideal systems by the material-balance constrained Gibbs free energy minimisation is a modern application of the thermodynamic theory with increasing practical uses.
Pajarre, Risto +3 more
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Electrochimica Acta, 1985
On note les causes d'erreurs dans le calcul des energies de transfert de Cu 2+ de l'eau au ...
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On note les causes d'erreurs dans le calcul des energies de transfert de Cu 2+ de l'eau au ...
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2016
Some properties of the Gibbs and Helmholtz energies, two thermodynamic functions of utmost importance in chemistry especially for the study of the notion of activity, are recalled. The chemical potential of a species in a system, which is the pivotal notion of the chemical reactivity (most of the time entailing the notion of activity), is, indeed, a ...
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Some properties of the Gibbs and Helmholtz energies, two thermodynamic functions of utmost importance in chemistry especially for the study of the notion of activity, are recalled. The chemical potential of a species in a system, which is the pivotal notion of the chemical reactivity (most of the time entailing the notion of activity), is, indeed, a ...
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Gibbs Energy Change, ∆G, and Standard Gibbs Energy Change, $$\Delta G^{\circ }$$
2018The previous chapters described theories relating to equilibrium conditions; this chapter discusses utilising these theories in practice. We will first consider the van’t Hoff isotherm, which ascertains the direction of a reaction under certain conditions, and will then discuss the Ellingham diagram, which assists in ascertaining the stability of ...
Taishi Matsushita, Kusuhiro Mukai
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1996
The criterion for equilibrium as expressed by (dS) U, V ≧ 0 in Chapter IV states that the entropy change of an isolated system is zero or positive. An isolated system is not a very convenient and useful system in thermodynamics, hence it is desirable to investigate the state of a system as affected by the surroundings, usually under constant ...
N. A. Gokcen, R. G. Reddy
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The criterion for equilibrium as expressed by (dS) U, V ≧ 0 in Chapter IV states that the entropy change of an isolated system is zero or positive. An isolated system is not a very convenient and useful system in thermodynamics, hence it is desirable to investigate the state of a system as affected by the surroundings, usually under constant ...
N. A. Gokcen, R. G. Reddy
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2019
This chapter describes chemical reactions that occur very readily and go effectively to completion, causing the reactants to completely transform into products. It refers to other reactions that occur readily but do not go to completion, as they form an equilibrium mixture of reactants and products.
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This chapter describes chemical reactions that occur very readily and go effectively to completion, causing the reactants to completely transform into products. It refers to other reactions that occur readily but do not go to completion, as they form an equilibrium mixture of reactants and products.
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