are controlled by activation and I calculate A-both E Corr polarization .Use the data given below to „B-The corrosion rate CR in mm/year, corr
are controlled by activation and I calculate A-both E Corr polarization .Use the data given below to „B-The corrosion rate CR in mm/year, corr
Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry
Section: Chapter Questions
Problem 22.28QAP
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Transcribed Image Text:Q2: A-: Assume that the rates of oxidation of Zn and reduction of H+
are controlled by activation polarization .Use the data given below to
calculate A-both E Corr and I corr ,B-The corrosion rate CR in mm/year,
A=lcm, pzn=7.14 g/cm',C-sketch the appropriate polarization curves,.
Zn = Zn + 2e=
Ez = -0.80 V iaza = 10–7 A/cm²
Ba=0.10 V
Aw = 65.37 g/mol
p=7.14g/cm³
2H+ + 2e = H;= EH = 0.10V
ioH = 10-10 A/cm²
%3D
= -0.10 V
CON
UN
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