Dry corrosion is very common in metals. Stainless steel has very high resistance to the dry corrosion due to Select one: a. stainless steel has high ionic conductivity O b. stainless steel has high electrical conductivity C. Its ability of forming a protective film by the addition of 12% chromium d. its anodic/catholic property Question 12 To minimize the effect of wet corrosion between two (2) metals. Which answer is wrong? Select one: a. Impress an electric DC current between a non-consumable anode and the metals to be protected. O b. Modification of the corrosive environment eg. de-aeration or inhibitors. C. Installing a third metal that is anodic to both.

Dry corrosion is very common in metals. Stainless steel has very high resistance to the dry corrosion due to Select one: a. stainless steel has high ionic conductivity O b. stainless steel has high electrical conductivity C. Its ability of forming a protective film by the addition of 12% chromium d. its anodic/catholic property Question 12 To minimize the effect of wet corrosion between two (2) metals. Which answer is wrong? Select one: a. Impress an electric DC current between a non-consumable anode and the metals to be protected. O b. Modification of the corrosive environment eg. de-aeration or inhibitors. C. Installing a third metal that is anodic to both.

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...

See similar textbooks

Similar questions

3) a) Steel is often coated with a layer of zinc (Zn) if it is to be used outside. What characteristics do you think the zine provides to this coated, or galvanized, steel ? b) Which type of corrosion would be expected in the first figure (left figure) c) There is a corrosion process in the second figure (right). What is the A, B, C, D, E. Air Corrosion Electrolyte Corrosion Water Droplet products products D Fe (aq) 0, + 2H,0 + 4e -> 40H Fe -> Fe* + 2e" Copper alloy bolt Aluminum Aluminum E 0, + 4H* + 4e -> 2H,0 Iron
A zinc bar weighing 3.0 kg is attached to a buried iron pipe to protect the pipe from corrosion. An average current of 0.020 A flows between the bar and the pipe. How many years will be required for the zinc bar to be entirely consumed? a. 600yrs b. 7.00yrs c. 5.99yrs d. 14.0yrs
Designing a galvanic cell from two half reactions. #2
List 3 techniques for protection against corrosion
5. Tin-plated steel is used for tin cans. If the production of sheets of tin-plated steel requires 14.5 g Sn in the coating and the run takes 120 minutes, what current strength in ampere is required?
Any coating that keeps a part free from environments that can cause rust can help reduce corrosion. What must paint manufactures do to produce a paint that is specifically designed to help prevent corrosion?
In a cell with Zn/Zn2+ and Cu/Cu2+ electrodes, _______. a. Cu is oxidized and Zn2+ is reduced. b. Cu is reduced and Zn2+ is oxidized. c. Cu2+is oxidized and Zn is reduced. d. Cu2+is reduced and Zn is oxidized.
Please do fast ASAP fast
6.Why is painting a metallic surface not considered an effective way to stop corrosion? a. the paint can cause the corrosion b. paint is acidic and will react with the metal c. any chip or crack in the paint can lead to corrosion d. lead based paints can damage the metallic surface the paint is designed to protect e. moisture and oxygen can penetrate the painted surface
11. What are the factors on which corrosion depends? b. Name three processes used to prevent corrosion
True or False. Write true if the statement is correct and if false, underline the wrong word or phrase and write the correct word to make the statement true. _______4. A conductor must exist for electrons to be transferred. This conductor is usually some kind of wire so that electrons can move from one site to another._______5. The silver half-cell reaction must be multiplied by three._______6. Reduction occurs at the anode.
Electrolysis is also used to plate metals onto other metals. True or false? Give an example?