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Chapter 16: Problem 2

The statement of Kohlrausch's law is (a) the equivalent conductance of an electrolyte at infinite dilution is equal to the product of equivalent conductance of the component ions (b) the equivalent conductance of an electrolyte at infinite dilution is equal to the difference of equivalent conductances of the component ions (c) the equivalent conductance of an electrolyte at infinite dilution is equal to the sum of the equivalent conductances of the component ions (d) none of the above

Short Answer

Expert verified
(c) the equivalent conductance of an electrolyte at infinite dilution is equal to the sum of the equivalent conductances of the component ions

Step by step solution

01

Understand Kohlrausch's Law

Kohlrausch's Law is a statement about the behavior of electrolytes when they are at a state of infinite dilution. It states that the limiting molar conductivity of an electrolyte can be represented as the sum of the individual contributions of the ions.
02

Analyze the answer options

Now, analyze each of the answer options in the light of the understanding of Kohlrausch's Law obtained in step 1. The key word to look for in the question is 'sum', as Kohlrausch's Law stipulates the sum of the individual contributions of the ions.
03

Choose the correct answer

Looking at the options, answer (c) states that the equivalent conductance of an electrolyte at infinite dilution is equal to the sum of the equivalent conductances of the component ions. This matches perfectly with Kohlrausch's Law, hence the correct answer is (c).

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Most popular questions from this chapter

Kohlrasch's law can be expressed as (a) \(\lambda_{\infty}=\lambda_{a}-\lambda_{c}\) (b) \(\lambda_{\infty}=\lambda_{c}-\lambda_{a}\) (c) \(\lambda_{\infty}=\lambda_{a}+\lambda_{c}\) (d) \(\lambda_{\infty}=\lambda_{c}+\lambda_{a}\)

The Hittorf's rule states that (a) the loss of concentration around any electrode is proportional to the speed of the ions moving towards it (b) the loss of concentration around any electrode is proportional to the speed of the ions moving away from it (c) the loss of concentrations around both the electrodes is proportional to the sum of speed of cations and anions (d) none of the above

Kohlrausch's law can be used to determine (a) \(\lambda_{\infty}\) for weak electrolyte (b) absolute ionic mobilities (c) solubility of a sparingly soluble salt (d) all of these

When a strong acid is titrated against a strong base, the end point is the point of (a) zero conductance (b) maximum conductance (c) minimum conductance (d) none of these.

The failure of Ostwald's dilution law in case of strong electrolytes is due to (a) strong electrolytes are almost completely dissociated at all dilutions and \(\lambda_{v} / \lambda_{\infty}\) do not give accurate value of \(a\) (b) the law of mass action in its simple form cannot be applied when the concentration of the ions is very high (c) the ions get hydrolysed and affect the concentration terms (d) all of the above
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