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ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsHard2 minPYQ_2022
ChemistryHardstatement

A dilute solution of sulphuric acid is electrolysed using a current of0.10 Afor2hours to produce hydrogen and oxygen gas. The total volume of gases produced atSTPiscm3. (Nearest integer) [Given : Faraday constantF=96500 Cmol-1atSTP, molar volume of an ideal gas is22.7 Lmol-1]

Answer:
127
Solution:

At anode

2H2OO2g+4H++4e-

At cathode

2H++2e-H2g

Now number of gm eq. =i×t96500

=0.1×2×60×6096500

=0.00746

VO2=0.007464×22.7=0.0423

VH2=0.007462×22.7=0.0846

VTotal127ml or cc

Stream:JEESubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells
2mℹ️ Source: PYQ_2022

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