Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryFaraday's Law of Electrolysis/Electrolytic CellsMedium2 minQB

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Passage / Comprehension

The cell potential for the chemical reaction : $Hg_{2}^{^{2 +}} (a q) + N O_{3}^{-} (a q) + 3 H_{3} O^{+} (a q) ⟶ 2 H g^{2 +} (a q) + H N O_{2} (a q) + 4 H_{2} O (l)$

is measured under standard conditions in the electrochemical cell shown in the accompanying diagram.

How long will it take to produce 0.10 mole of HNO₃ by this reaction if a current of 10 A passes through the cell?

Options:

Answer:

Solution:

$n_{eq} HNO_{2} = \frac{Q}{F} \Rightarrow 0.1 \times 2 = \frac{10 \times t}{96500} \Rightarrow t = 1930 sec$ .

Stream:JEESubject:ChemistryTopic:ElectrochemistrySubtopic:Faraday's Law of Electrolysis/Electrolytic Cells

⏱ 2mℹ️ Source: QB

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