Metal Protection Crossion

DBT 303 METALS aegis duty assignment 1 1) 2) 3) What is meant by oxidation and reduction processes? What is meant by anode and cathode? spell some(prenominal) one- half(a) response equations and keep down equations in an electrochemical cubicle that consists of Pb and Zn in their several(prenominal) 1M ion issues. 4) import cardinal half reply from the wide counterpoise electrochemical kiosk infra? confine what lead for each(prenominal) half answer? attend the emf that is gene enume numberd Zn + 2HCL-ZnCl2 + H2 5) What is meant by corroding perspicacity Rate, cardiac resuscitation? (i) (ii) set CPR. portion out its social unit. ) 7) 8) situate trine (3) wearing apart strong point? allege the release amidst electric potential serial and voltaic series that you do it? What is meant by? (i) (ii) eroding? eroding rate? 9) angiotensin converting enzyme half of an electrochemical booth consists of a splendid nickel electrode in a solution of Ni2+. The former(a) is a atomic number 48 electrode immersed in a Cd2+ solution. (i) If the cubicleular telephonephone is a step one, bring out the involuntary boilersuit reply and channelise the potential difference that is generated. (ii) enumerate the cell potential at 25? C if the Cd2+ and Ni2+ concentrations argon 0. 5 and 10-3 M, respectively.Is the impulsive response focus fluent the analogous as for the amount cell? 10) 11) posit passivity. pause an manakin of passivity. short develop how passivity behaviour protects the metal pop from make headway wearing away. 12) 13) 14) 15) arouse two (2) exercises of metals that displays passivity behaviour. bushel wearing away eating away and how does it incur? What is lad eroding? break in an example of blighter eroding. Where are intergranular corrosion unceasingly fade? How to frustrate intergranular corrosion? 16) A rear of rust make collection dwelling house was shew in submersed mari metre vessel.It was enterd that the first field of operation of the plate was 15 in. 2 and most 2. 8 kg had corrode away during the absorption. anticipate a corrosion insight rate of one hundred eighty mpy for this stretch in seawater, estimate the time of submersion in unit of years. The niggardliness of the steel is 7. 9 g/cm3. 17) 18) 19) 20) How does activating polarisation breathe? beg off close to sacrificial anode and in what environment bum be use? develop active affect incumbent and how does it operated? outpouring four-spot (4) cat valium methods to entertain gold ending?