Why does specific conductance decreases on increase in dilution but molar conductivity increases Why?

Upon dilution, specific conductance or conductivity decreases while molar conductivity increases. Conductivity is the conductance of one centimeter cube of the solution. Upon diluting the solution, the concentration of ions per centimeter cube decreases and therefore, the conductivity decreases.

Why does molar conductivity of a solution increase with dilution?

When a solution is diluted, there are more ions and they have more space to move, i.e. ions are more far away from each other and mobility of ions increase which leads to increase in molar conductivity of the solution. Hence when a solution is diluted, conductivity decreases and molar conductivity increases.

How does specific conductance change with dilution?

Answer: Specific Conductivity decreases with a decrease in concentration. Since the number of ions per unit volume that carry current in a solution decrease on dilution. Hence, concentration and conductivity are directly proportional to each other.

How does specific and equivalent conductance vary with dilution?

The conductance of solution increases on dilution. The specific conductivity decreases on dilution. The equivalent conductivity and molar conductivity increases with dilution. The equivalent and molar conductivities tend to accumulate maximum value with increasing dilution.

What happens to specific and equivalent conductance with dilution explain with reason?

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.

Why does molar conductance of weak electrolyte increases with dilution?

For a weak electrolyte molar conductance in dilute solution increases sharply as its concentration in solution is decreased. As the dilution increases, the dissociation of the electrolyte increases, hence the total number of ions increases, therefore, the molar conductivity increases.

Which conductance decreases with dilution?

Specific conductance
Statement I: Specific conductance decreases with dilution while molar conductance increases. Statement II: On dilution, number of ions per unit volume decreases but total number of ions increases considerably.

How does dilution affect the molar conductance of a solution?

Molar conductance increases with dilution. Molar conductance is dependent on the concentration of the electrolyte. When the solution is dilute the number of ions available per unit volume reduces, resulting in the reduction of the conductivity.

How does dilution affect the conductivity of electrolytes?

When the solution is dilute the number of ions available per unit volume reduces, resulting in the reduction of the conductivity. The molar conductivity of both weak and strong electrolytes increases with a decrease in concentration or dilution.

How does temperature affect the specific conductance of a solution?

Higher the temperature, faster the ions move and so more will be the conduction. “Specific conductance” is the conductance due to unit volume (1 cc) of the solution. When the solution becomes dilute (concentration decreases), there will be lesser number of ions in unit volume of the solution.

What is the molar conductivity of a weak electrolyte?

The molar conductivity of both weak and strong electrolytes increases with a decrease in concentration or dilution. The molar conductivity is the conductivity offered by one mole of ions. Even after dilution, we are still considering the same unit mole of ions.