How does electrophoretic effect affect the conductance of the solution?
Electrophoretic effect is the effect of solvent molecules on the movement of a particular ion in a solution. It is an important factor that can slow down the movement of ions within a solution.
What do you mean by electrophoretic effect in case of strong electrolyte solutions?
The electrophoretic effect is the effect in which the mobility of ions in solution moving under the influence of an applied electric field is affected by the flow of ions of opposite charge in the opposite direction.
What is Debye-Hückel theory of strong electrolytes?
The Debye-Hückel theory is based on three assumptions of how ions act in solution: Electrolytes completely dissociate into ions in solution. Solutions of Electrolytes are very dilute, on the order of 0.01 M. Each ion is surrounded by ions of the opposite charge, on average.
What is relaxation effect in Debye-Hückel theory?
RELAXATION EFFECT. During the application of electromotive force, the central ions moves in one direction and the oppositely charged ions present in their ionic atmosphere move in opposite direction. Solvent molecules are also there in the ionic atmosphere.
How the equivalent conductance of both the strong and the weak electrolytes vary with dilution of solution?
With dilution, the ions become far apart from one another and ion pair formation decreases. As a result, equivalent conductivity increases with dilution. The equivalent conductance of weak electrolytes also increases with dilution, but the effect is not linear because number of ions increases with dilution.
What is the electrophoretic effect?
Electrophoretic effect It is the tendency of the applied potential to move the ionic atmosphere itself. This drags the solvent molecules along because of the attractive forces between ions and solvent molecules.
What is an electrophoretic effect?
What are the factors on which the Debye hückel constant A depends?
where A and B are constants that depend only on known quantities such as temperature, the charges on the ions and the dielectric constant and viscosity of the solvent. This is known as the Debye–Hückel–Onsager equation.
What is asymmetric effect in Debye-Hückel theory of strong electrolytes?
Asymmetry, or relaxation effect This influence on the speed of an ion is known as the “Asymmetry effect” because the ionic atmosphere moving around the ion is not symmetrical; the charge density behind is greater than in the front, slowing the motion of the ion.
What is relaxation effect how it decreases conductivity of electrolytes?
When an electrical potential is applied to an electrolytic solution, two effects produced by the ionic atmosphere prevent the ions to move at the expected speed and hence conducting the amount of current. One of these effects is Relaxation effect.