Question

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

Answer 1

number of moles of water = 4
Current in ampere = 4 ampere

Faraday's constant = 96485 C

thus According to the formula

Number of moles = (Current X Time) / (Faraday's constant)
                      Time = 4 * 96485 / 4
                               = 96485 Sec

Answer 2

Answer:

1.93 x 10^5

Explanation:

2H2O → 2H2 + H2

1 mole of H2O exchanges 2 moles of electrons, then 2 moles of H2O will exchange 4 moles of electrons. = 4 × 96500 coulomb =4 x 96500/2sec = 1.93 x 10^5 sec