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Grade: 12

                        

Current 10 amp passed througj cuso4 for 32min 10 sec.if 896ml oxy liberated at stp calculate efficiency of cell

4 years ago

Answers : (2)

Vikas TU
12279 Points
							
from faraday’s law,
moles x valence factor = i*t/F
moles = i*t/F*n
          = 10*1930/2*96485
         = 0.100 approx.
Moles given at STP = 0.896/22.4 = 0.04
efficiency = (0.1-0.04)/0.1  * 100 => 60%
4 years ago
Pulkit Khandelwal
23 Points
							Nmm  thanks buddy.a small mistake valency factor n=4.because 2h2o gives o2 + 4h^+ +4eso the moles=.05 nd the answer is 80%
						
4 years ago
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