In a fuel cell, hydrogen and oxygen react to produce electricity. In process, hydrogen gas is oxidized at the anode and oxygen at the cathode. If `67.2L` of `H_(2)` at `STP` reacts in `15mi n` , what is the average current produced ? If the entire current is used for electro`-` deposition of copper from copper `(II)` solution, how many grams of copper will be deposited ?
Anode reaction `: H_(2)+2overset(c-)(O)Hrarr2H_(2)O+2e^(-)`
Cathode reaction `:O_(2)+2H_(2)O+2e^(-) rarr 4overset(c-)(O)H`

Explanation

Total number of gram equivalent of `H_z` used `=67.2/11/2=6`
`implies 6xx96500=15xx60xxI implies I=643.33 A` , Mass of Cu deposited `=6xx63.5/2g=190.50 g`