Two identical electrolytic cells are connected in parallel to a power supply rated at…
CHEMISTRY · Single correct · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry
Problem
Two identical electrolytic cells are connected in parallel to a power supply rated at a maximum of 25 A. Each cell is intended to produce 5.00 g of Al in 45.0 min with 100 % current efficiency. Will the power supply allow both cells to meet the production target?
(a) Yes. Each cell needs about 11.9A, so 25A is more than sufficient.
(b) No. Each cell needs about 20A, so the combined requirement exceeds the supply’s rating.
(c) Yes. Each cell needs about 12.5A, matching the supply’s rating exactly.
(d) No. Each cell needs about 13A per cell, putting the total current just above the supply limit.