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Describing the process of Electorlysis and how the number of coloumbs can verify the amount of current given off
Title: Describing the process of Electorlysis and how the number of coloumbs can verify the amount of current given off
Category: Science & Technology
Details: Words: 925 | Pages: 3.9 (approximately 235 words/page)
Describing the process of Electorlysis and how the number of coloumbs can verify the amount of current given off
Electrolysis *First Law The quantity of a substance produced by electrolysis is proprotional to the quantity of electricty used.
*Second Law For a given quantity of electricity the quantity of substance produced is proportional to its weight.
*The quantity of electricity or charge contained in a current running for a specified time can be calculated: Q = I x t Q = quantity of electricity or charge in coulombs (C) I = current in amps (A) t = time (…showed first 75 words of 925 total…
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…showed last 75 words of 925 total…used n(e) n(e) = n(Na) = mass ÷ MM mass = 1kg = 1,000g MM = 22.99 g mol-1 (from Periodic Table) n(e) = 1,000 ÷ 22.99 = 43.497 mol Calculate the quantity of electricity required: Q = n(e) x F n(e) = 43.497 mol F = 96,500 C mol-1 Q = n(e) x F = 43.497 x 96,500 = 4.2 x 106 C Calculate the electrical energy: E = Q x V Q = 4.2 x 106 V = 4.5 V E = 4.2 x 106 x 4.5 = 1.89 x 107 J Convert Electrical Energy to kilowatt-hours: kilowatt-hours = E ÷ 3.6 x 106 E = (1.89 x 107) ÷ (3.6 x 106) = 5.25 kWH
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