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A dilute solution of sulphuric acid is electrolyzed using a current of 0.10 A for 2 hours to produce hydrogen and oxygen gas. The total volume of gases produced at STP is __________ cm3. (Nearest Integer).

[Given: Faraday constant F = 96500 C mol-1 at STP, molar volume of an ideal gas is 22.7 L mol-1]

0 2 Views | Posted 2 months ago
Asked by Shiksha User

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    Answered by

    Vishal Baghel | Contributor-Level 10

    2 months ago

    At anode (oxidation)

    2H2O → O2 (g) + 4H+ + 4e-

    At cathode (Reduction)

    2H+ + 2e-→ H2 (g)

    No. of gm- equivalents = i×t96500=0.1×2×60×6096500=0.00746

    VO2=0.007464×22.7=0.0423 L

    VH2=0.007462×22.7=0.0846 L Vtotal≅127mL

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