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What is the relationship between molar conductivity and specific conductivity?

Author

David Ramirez

Updated on February 16, 2026

What is the relationship between molar conductivity and specific conductivity?

Answer. Specific Conductivity is equal to the Molar Conductivity, multiplied by Molarity of the solution.

Furthermore, what is the effect of dilution on molar conductivity and specific conductivity?

On dilution, the equivalent conductivity and the molar conductivity increases. This is because the degree of dissociation and the total number of ions increases. However the conductivity decreases as the number of ions per unit volume decreases.

Furthermore, what is the relation between specific conductance and equivalent conductance? Answer: Equivalent Conductivity is defined as the conducting power of all the ions produced by dissolving one gram equivalent of an electrolyte in solution. Specific conductivity is the measure of the ability of that material to conduct electricity.

Moreover, how does molar conductivity vary with concentration?

Molar conductivity increases with decrease in concentration as the total volume, V, of a solution containing one mole of electrolyte also increases. Upon dilution, the concentration decreases. When the concentration approaches zero, the molar conductivity of the solution is known as limiting molar conductivity, ˰m.

How does molar conductivity change with dilution?

Variation of molar conductivity with dilution

For weak electrolytes (i.e. incompletely dissociated electrolytes), however, the molar conductivity strongly depends on concentration: The more dilute a solution, the greater its molar conductivity, due to increased ionic dissociation.

Why does molar conductivity decrease with concentration?

Change in Molar Conductivity

Molar conductivity increases with a decrease in concentration. This happens because the total volume, V, of the solution containing one mole of electrolyte also increases. Variation of molar conductivity with concentration is different for both, strong and weak electrolytes.

Does molar conductivity decrease with concentration?

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. The molar conductivity of both weak and strong electrolytes increases with a decrease in concentration or dilution.

Why does conductivity decrease dilution?

Conductivity of a solution is the conductance of ions present in a unit volume of the solution. On dilution the number of ions per unit volume decreases. Hence, the conductivity decreases.

Why does concentration affect conductivity?

Conductivity is a measurement of the ability of an aqueous solution to transfer an electrical current. The current is carried by ions and therefore the conductivity increases with the concentration of ions present in solution, their mobility and the temperature of the water.

How does conductivity vary with dilution?

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. On dilution, conductivity decreases but volume containing one mole of an electrolyte increases.

What is SI unit of cell constant?

A cell constant has units of 1/cm (per centimeter), where the number refers to the ratio of the distance between the electrode plates to the surface area of the plate.

What is it called when concentration of molar conductivity approaches zero?

In other words, When the concentration of the electrolyte approaches zero, the molar conductivity is known as limiting molar conductivity. This increase in molar conductivity is because of the increase in the total volume containing one mole of the electrolyte.

What is the effect of temperature on molar conductivity?

As temperature increases, the energy gained by the molecules in the medium (electrolyte) increases and hence the ions are in a higher energy state. This energy will be converted into kinetic energy and so, the mobility increases. Hence the conductivity increases.

What is the formula of molar conductance?

Where V is the volume of the solution in containing one gram mole of the electrolyte. Thus, Λ=κ×volumein cm3 containing 1 mole of electrolyte. According to SI system, molar conductance is expressed as s m2 mol-1 if concentration is expressed as mol m3.

What is the limiting molar conductivity of acetic acid?

The limiting molar conductivity and molar conductivity of acetic acid are 390. 5 s. cm2.

What is the relationship between degree of dissociation and molar conductivity of electrolyte?

Due to an increase in dilution degree of dissociation increases and which results in an increase in the molar conductivity. For the strong electrolyte, the molar conductivity increases sharply with increasing concentration.

What is molar conductivity at infinite dilution?

Infinite Dilution: It means that the electrolyte is 100% ionized. The molar conductivity at infinite dilution is called limiting molar conductivity.

What is meant by molar conductivity of a solution?

(a) Molar conductivity of a solution at a given concentration is the conductance of volume V of a solution containing 1 mole the electrolyte kept between two electrodes with the area of cross-section A and distance of unit length. Λm=klA. Now, l=1 and A=V (volume containing 1 mole of the electrolyte).

How does molar conductivity vary with concentration of weak electrolyte?

Answer: There is sharp increase in the number of ions in the solution. Hence, the molar conductivity of a weak electrolyte rises steeply at low concentration. (ii) Strong electrolytes: The molar conductivity of a strong electrolyte decreases slightly with the increase in concentration.

What is the formula for equivalent conductance?

It can be calculated using the following formula: λ = kV; where the term 'V' denotes the volume (in millilitres) that contains one gram equivalent of the given electrolyte.

What do you mean by specific conductivity?

Specific conductivity (better known as conductivity) is the measure of the ability of that material to conduct electricity. It is represented by the symbol “К”.

Why does equivalent conductance increases with dilution?

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 kohlrausch law in chemistry?

: a statement in physical chemistry: the migration of an ion at infinite dilution is dependent on the nature of the solvent and on the potential gradient but not on the other ions present.