Question

On passing one faraday of electricity through a dilute solution of an acid the volume of hydrogen obtained at n.T.P

Answer 1

understand the reaction first,

2H+ + 2e- ----------------------> H2

that means,

2 mol of e- -------------->1 mol of H2

so,

1 mol of e- ------------------->1/2 mol of H2

i,e

1F ------------------------------->1/2 mol of H2

so,,,,

1 mol H2 ------> 22.4 litre

so ½ mole ----------> 11.2 litre

that means 11200 mL

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