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How much time is required for complete decomposition of 4 mol of water using a current of 4 ampere?

Options

  1. A1.93 × 1 0 5 s e c
  2. B3.85 × 1 0 4 s e c
  3. C96500 sec
  4. D2.92 × 1 0 5 s e c

Correct answer

A. 1.93 × 1 0 5 s e c

Step-by-step solution

To decompose 1 mole of H 2 O, we need two moles of electrons. To decompose 4 moles of H 2 O, we need 8 Faraday. Now, Q   =   I   ×   t ⇒ t   =   8 × 96500 4 = 1.93 × 10 5   sec

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