Subjective Type

Define the following terms: (i) Fuel cell (ii) Limiting molar conductivity $$\left( { \bigwedge }^{ o }m \right) $$

Solution

Fuel cell:- A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction. Limiting Molar Conductivity:- Molar conductivity is defined as the conductivity of an electrolyte solution divided by the molar concentration of the electrolyte, and so measures the efficiency with which a given electrolyte conducts electricity in solution. It is the conducting power of all the ions produced by dissolving one mole of an electrolyte in solution.

SIMILAR QUESTIONS

Electrochemistry

Conductivity of 0.00241 M acetic acid is $$7.896 \times 10^{-5} S \, cm^{-1}$$. Calculate its molar conductivity. If $$\lambda^o_m$$ for acetic acid is $$390.5 S \, cm^2 \, mol^{-1}$$., what is its degree of dissociation ?

Electrochemistry

Equivalent conductance of NaCI, HCI and $$CH_{3}COONa$$ at infinite dilution are 126.45, 425.16 and $$91 ohm^{-1}cm^{2}$$4 respectively. What would be the equivalent conductance of $$CH_{3}COOH$$ at infinite dilution?

Electrochemistry

Answer the following questions : Define limiting molar conductivity . Why conductivity of an electrolyte solution decreases with decrease in concentration ?

Electrochemistry

The following curve is obtained when molar conductivity $$ ( \Lambda_m) $$ is plotted against the square root of concentration $$ c^{1/2} $$ for two electrolytes A and B. As seen from the graph , the value of limiting molar conductivity $$ (\Lambda^{\circ}_{m}) $$ for electrolyte B cannot be obtained graphically . How can this value be obtained ?

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