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ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsEasy2 minPYQ_2020

ChemistryEasysingle choice

A certain quantity of electricity deposits 0.54 g of silver from $A g N O_{3}$ solution. What volume of hydrogen will the same quantity of electricity liberate at $27 ° C$ and 750 mm Hg pressure?

Options:

Answer:

Solution:

$\frac{W_{A g}}{E_{A g}} = \frac{W_{H_{2}}}{E_{H_{2}}}$
or $\frac{0.54}{108} = \frac{W_{112}}{1}$
$W_{H_{2}} = 0.005$ g
$P = 750 mm = 750/760 atm$
Using ideal gas equation
$V = \frac{W R T}{M P} = \frac{0.005 \times 0.082 \times 300 \times 760}{2 \times 750}$
$= 62 .34 ml$ .

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells

⏱ 2mℹ️ Source: PYQ_2020

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