Question 4 (a): The figure below shows the Pourbaix diagram of copper in water. Will copper corrodein deaerated water? Justify your answer using the diagram.2.2E(v) 27 8 9 10 11 12 13 14 15 162.22o 2 4 64 21.81.81.61.61.41.4(b}1.2Cuo1.210.8Cutt0.80.60.60.4HCUO20.40.20.2CuO20 2 4 6(a)Cu2OCu*-0.2Cu-0.2-0.4-0.4-0.6-0.6-0.8-0.8-1-1-1.2-1.2-1.4-1.4-1.6-1.6-1.8-2 -1 0 1 2 3 4-1.89 10 11 12 13 14 15 16pH5 6 7 8(e) Copper

Given: To find: Does copper corrode in deaerated water

Answered: Question 4 (a): The figure below shows…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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help pls A two-phase phase diagram is shown. Answer the following questions t -1300 1500+ Temperature 1100 0 34 54! 166 482 80 Composition of Ni % 20 What is the composition (in % Cu) of the solid phase corresponding to the red dot in between the solidus and liquidus lines in the phase diagram? Just write the number. Do not write the % symbol. Question 17 2.33 100 An alloy is being made with 66% Ni and 34% Cu. When it is cooled from 1500°C to the temperature corresponding to the red dot in the phase diagram, how many kg of liquid is present in the mixture?
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rams A copper-nickel alloy of composition 75 wt% Ni-25 wt% Cu is slowly heated from a temperature of 1300°C (1573). (a) At what temperature does the first liquid phase form? (b) What is the composition of this liquid phase? T(°C) 1600 (c) At what temperature does complete melting of the alloy occur? (d) What is the composition of the last solid remaining prior to complete melting? 1500 1400 1300 1200 1100 1000 17 / 17 0 L (liquid) 20 liquidus + a solidus 100% 40 α (FCC solid solution) 60 80 100 wt% Ni 17
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a) Plot the Fermi-Dirac Distribution, the filled state occupancy factor f(E) for a material whose EF = 1.0 eV (assume it is temperature independent) over the energy range [0.5,1.5] eV at the following temperatures (in K): 10, 100, 200, 250, 300, 350, and 400. All these f(E) plots should be on the same graph b) Plot the empty state occupancy factor 1- f(E) for a material whose EF = 1.0 eV (assume it is temperature independent) over the energy range [0.5,1.5] eV at the following temperatures (in K): 10, 100, 200, 250, 300, 350, and 400. All these f(E) plots should be on the same graph c) On the same graph, plot f(E) and 1- f(E) for the material described in parts a and b at T = 300 K

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