During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 Amperes.
During the electrolysis of molten sodium chloride,
At cathode :2Na++2e-⟶2Na
At anode :2Cl-⟶Cl2+2e-
Net reaction : 2Na++2Cl-⟶2Na+Cl2
According to Faraday's first law of electrolysis,
w=Z×I×tw=E96500×I×t
No.of moles of Cl2 gas × Mol.wt.of Cl2 gas
= Eq. wt. of Cl2gas×I×t965000.10×71=35.5×3×t96500t=0.10×71×9650035.5×3=6433.33sec
t=6433.3360 min=107.22 min≈110 min