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Capitolo 14

Equilibrio chimico

Equilibrio dinamico
Equilibrio dinamico
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When ...
La costante di equilibrio
La costante di equilibrio
Consider the oxidation of sulfur dioxide: For a reaction that begins with a mixture of reactants only, the product concentration is initially equal to ...
Equilibri per reazioni gassose e reazioni eterogenee
Equilibri per reazioni gassose e reazioni eterogenee
Homogeneous Equilibria for Gaseous Reactions For gas-phase reactions, the equilibrium constant may be expressed in terms of either the molar ...
Calcolo della costante di equilibrio
Calcolo della costante di equilibrio
The equilibrium constant for a reaction is calculated from the equilibrium concentrations (or pressures) of its reactants and products. If these ...
Quoziente di reazione
Quoziente di reazione
The status of a reversible reaction is conveniently assessed by evaluating its reaction quotient (Q). For a reversible reaction described by m A + n B ...
Calcolo dell' equilibrio di concentrazione
Calcolo dell' equilibrio di concentrazione
Being able to calculate equilibrium concentrations is essential to many areas of science and technology—for example, in the formulation and dosing ...
Principio di Le Chatelier: cambiare la concentrazione
Principio di Le Chatelier: cambiare la concentrazione
A system at equilibrium is in a state of dynamic balance, with forward and reverse reactions taking place at equal rates. If an equilibrium system is ...
Principio di Le Chatelier: variazione del volume (pressione)
Principio di Le Chatelier: variazione del volume (pressione)
For gas-phase equilibria, changes in the concentrations of reactants and products can occur with altered volume and pressure. The partial pressure, P, of ...
Principio di LeChatelier: cambiare la temperatura
Principio di LeChatelier: cambiare la temperatura
Consistent with the law of mass action, an equilibrium stressed by a change in concentration will shift to re-establish equilibrium without any change in ...
La teoria del piccolo x
La teoria del piccolo x
If a reaction has a small equilibrium constant, the equilibrium position favors the reactants. In such reactions, a negligible change in concentration may ...
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