Q4:-Put a mark of true or false in front of the following statements and correct the error, if any:- 1-In (Cathodic protection system) sacrificial anode, which is more voltage than the metal to be protected from corrosion 2-In oxidation-reduction reactions of solutions of strong acids, the oxygen ions are less reduced than the liberated hydrogen ions. 3-Techniques Tafel extrapolation test are used in corrosion rate measurements to overcoming the disadvantages of the Linear polarization method 4-A differential aeration cell,corrosion take place from electrode being thoroughly aerated to another de aerated. 5-Selective Leaching corrosion based on the more electrochemical component of an alloy is usually the element that is removed. 6-Electrolytic Cells are Non-spontaneous redox reactions and convert the chemical energy to electric energy. 7- Sour Corrosion term refer on corrosion due to gases which contain high concentrations of CO₂ alone, and called sour gas, while acid gas, can refer to a gases containing high concentration as H₂S,CO₂,HCL.HF.

Q4:-Put a mark of true or false in front of the following statements and correct the error, if any:- 1-In (Cathodic protection system) sacrificial anode, which is more voltage than the metal to be protected from corrosion 2-In oxidation-reduction reactions of solutions of strong acids, the oxygen ions are less reduced than the liberated hydrogen ions. 3-Techniques Tafel extrapolation test are used in corrosion rate measurements to overcoming the disadvantages of the Linear polarization method 4-A differential aeration cell,corrosion take place from electrode being thoroughly aerated to another de aerated. 5-Selective Leaching corrosion based on the more electrochemical component of an alloy is usually the element that is removed. 6-Electrolytic Cells are Non-spontaneous redox reactions and convert the chemical energy to electric energy. 7- Sour Corrosion term refer on corrosion due to gases which contain high concentrations of CO₂ alone, and called sour gas, while acid gas, can refer to a gases containing high concentration as H₂S,CO₂,HCL.HF.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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5
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