100 Metric tons of copper concentrate containing 21 wt.% Cu is to be processed in 6 months with 25 working days per month and 8 working hours per day. The concentrate is leached by sulphuric acid and electrolyzed in 10 cells arranged in series. The minimum current rating (Ampere per month per cell, rounded off to the nearest integer) is ______.Given: Faraday constant = 96500 𝐶𝑜𝑢𝑙𝑜𝑚𝑏 𝑝𝑒𝑟 𝑔𝑟𝑎𝑚 𝑒𝑞𝑢𝑖𝑣𝑎𝑙𝑒𝑛𝑡. Atomic weight of copper is 63.
Share
Correct answer is in the range of 1485-1495 A. Mass of Cu concentrate - 21000g. As per Faraday's law= 21000/6= 3500 kg/month W=Zit ; 3500× 103= 63×i×t/2×96500 Time required to concentrate 21000g per month= 25×8×3600= 720000 sec i= 14891 Minimum current required= 14891/10= 1489.1 A.
Correct answer is in the range of 1485-1495 A.
Mass of Cu concentrate – 21000g.
As per Faraday’s law= 21000/6= 3500 kg/month
W=Zit ; 3500× 103= 63×i×t/2×96500
Time required to concentrate 21000g per month= 25×8×3600= 720000 sec
i= 14891
Minimum current required= 14891/10= 1489.1 A.
See lessWhy 103 is multiplied with 3500?
Why 103 is multiplied with 3500?
See lesshave you find the trick bro?
have you find the trick bro?
See less