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KCET2015ChemistryElectrochemistry

How many Coulombs of electricity are required for the oxidation of one mol of water to dioxygen?

Options

  1. A( 9.65 10⁴ C )
  2. B( 1.93 10⁴ C )
  3. C( 1.93 10⁵ C )
  4. D( 19.3 10⁵ C )

Correct answer

C. ( 1.93 10⁵ C )

Step-by-step solution

For the oxidation of one mole of water to dioxygen, ( H ₂ O 2 H ⁺+ 1 2 O ₂+2 e⁻ ) ( 2 ~F ) Coulombs of electricity is required. Therefore, electricity in ( C ) is [ array l =2 F =2 96500 =193000 C =1.93 10⁵ C array ]

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