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Current 10 amp passed througj cuso4 for 32min 10 sec.if 896ml oxy liberated at stp calculate efficiency of cell
from faraday’s law,moles x valence factor = i*t/Fmoles = i*t/F*n = 10*1930/2*96485 = 0.100 approx.Moles given at STP = 0.896/22.4 = 0.04efficiency = (0.1-0.04)/0.1 * 100 => 60%
Nmm thanks buddy.a small mistake valency factor n=4.because 2h2o gives o2 + 4h^+ +4eso the moles=.05 nd the answer is 80%
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