A steady current of 1.5 A flows through a copper voltameter for 10 min . If the electrochemical equivalent of copper is 30 10⁻⁵ ~g C ⁻¹ , the mass of copper deposited on the electrode will be

Step-by-step solution

If m is the mass of a substance deposited or liberated at an electrode during electrolysis when a charge q passes through electrolyte, then according to Faraday's first law of electrolysis, or aligned & m q & m=z q aligned where z is a constant of proportionality and is called electrochemical equivalent (ECE) of the the substance. If an electric current I flows through the electrolyte, then aligned q & =I t m & =z i t aligned Here, aligned i=1.5 ~A , t & =10 ~min =10 60 ~s , z & =30 10⁻⁵ gC ⁻¹ aligned Hence, mass o