1.

Cost of electricity for the production of x L H_2 at STP at cathode is Rs. x, then cost of electricity for the production of x L O_2 gas at STP at anode will be (assume 1 mol of electrons as one unit electricity) :

Answer»

`2x `
4x
16x
32 X

Solution :At CATHODE ` 2H^(+) + 2e^(-) to H_2 `
`{:("RS :xxL"),("At ANODE " 2OH^(-1) (1)/(2) O_2 + H_2O + 2e^(-)):}`
`(x)/(2) L " of " O_2 to Rsx , xL" of " O_2 to ? ((x)/(x) xx x)/(2) = 2x (Rs )`


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