How much copper will be deposited from a vitriol solution in 3 minutes, if the current through the electrolyte changes in accordance with the law i=6-0.03t? All quantities are expressed in the SI system.

How much copper will be deposited from a vitriol solution in 3 minutes

1.	How much copper will be deposited from a vitriol solution in 3 minutes, if the current through the electrolyte changes in accordance with the law i=6-0.03t? All quantities are expressed in the SI system.
Answer» Solution :First FIND the charge passing through the solution, making use of the graph in Fig. Since the current changes linearly, the eventual value being `i_(EV)=6-0.03xx180=2.4A,` the charge is easily obtained : `Q=(i_(0)+i_(ev))t//2`. Incidentally, the same result may be obtained by integration the expression `q=underset(0)overset(180)intidt` (check this). Then the MASS of copper may be FOUND from Faraday.s law

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How much copper will be deposited from a vitriol solution in 3 minutes, if the current through the electrolyte changes in accordance with the law i=6-0.03t? All quantities are expressed in the SI system.

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