Answered: A corrosion cell is composed of a 20…

A corrosion cell is composed of a 20 cm² copper sheet and a 400 cm² iron sheet, with a current density of 0.7 A/cm² applied to the copper

Understanding Motor Controls

4th Edition

ISBN:9781337798686

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter44: Semiconductors

Section: Chapter Questions

Problem 2RQ: The atoms of a material used as an insulator generally contain ___________ valence electrons.

See similar textbooks

Related questions

Q: Create a flowchart about Corrosion and its types of Corrosion Types of Corrosion 1.) Uniform…

A: The flow chart is the graphical representation of the topic using different shapes and arrows .

Q: Which of the following is not true about Corrosion? A. Corrosion is a natural process that converts…

Q: A part made of sheet steel is to be nickel plated. The part is a rectangular flat plate that is…

A: Given data: - The thickness of the rectangular flat plate is t = 0.075 cm. The length of the…

Q: sion

Q: 2. Calculate the corrosion rate in mm/yr for an iron cell having an area 250cm² exposed to corrosive…

Q: Why the study of chemical properties of engineering materials is necessary? Define corrosion and…

Q: A process of allowing the metal to corrode in order to produce a protective oxide film pror to use…

A: Corrosion is the process of oxidation of material in presence of air. Corrosion in metals is…

Q: Corrosion Name of Causes and preventation corrosion Corrosion at contact

A: Answer 1 ) a) Name of corrosion - Pitting corrosion - It is a form of corrosion which is localised…

Q: Why does chromium in stainless steel make them more corrosion resistant in many environments than…

A: Stainless steel has a Chromium substance of 15-25% alongside iron and carbon alloy to a major…

Q: Two uncoated copper plates are joined together using a bolt made of the same composition as the…

A: When two uncoated copper plates are joined together there may be chances of crevice corrosion may…

Q: ductile material having an endurance limit of 196 N/mm² and the yield point at 294 N/mm² is stressed…

Q: Which of the following statements are true? (This question has more than one correct answer) a.…

A: Answers are given under:

Q: Discussion: 1- Define the corrosion and mention its types? 2- What is the effect of solution…

A: Corrosion: Corrosion is the disintegration or demolition of metal and alloys in the presence of an…

Q: What are Biocides used for? How does MIC (microbiologically influenced corrosion) take place in a…

A: Biocide is a chemical that destroy the harmful microorganism i.e bacteria from any organism and in…

Q: Mechanical Engineering Discuss the difference between the following high-temperature corrosion;…

A: Corrosion is mainly a natural chemical process. In the corrosion process, the metal has been…

Q: a.What do we mean by titanium has a biocompatibility property And what does it mean that it can be…

A: (a) The bio-compatible means the metal which has the properties like resistance to corrosion from…

Q: Two sheets of a 1040 steel are joined together with an aluminium rivet, as seen in figure below.…

A: To Define : The possible corrosion that might be created as result . Explanation: A welding of two…

Q: 1. a) Explain why plain carbon steel has a numbers of application as engineering materials, even…

A: (a) It is right that the plain carbon steel has not enough corrosion resistance. Without having…

Q: Question: 4 A sheet of copper is exposed to oxygen at 1000°C. Afier 100 h. 0.245 g of copper are…

A: Calculate the rate of thickness after 100h by using the formula, Now, substitute the weight,…

Q: Calculate the maximum membrane stress in the wall of shells having the following shapes. The vessel…

A: Hoop stress: The circumferential or hoop stress is a stress that acts on the pressure in the…

Q: Disci 1- Define the corrosion and mention its types? 2- What is the effect of solution aeration on…

A: CORROSION: 1) Corrosion is the disintegration or demolition of metal and alloys in the presence of…

Q: A crude oil tower with a carbon steel overhead pipeline has been shut down due to an accident.…

A: (a) The corrosion rate :40 Mils/year = 0.040 in/year The minimum thickness of the pipe= 0.15 in for…

Q: Write down three types of sacrificial anodes that are widely used for ships in the sea. Draw and…

A: Corrosion is one of the ship's and its machinery's most dangerous foes. It is also the most…

Q: metal wires silicon frame cantilever doped piezoresiston silicon frame A fixed-free cantilever is…

A: Given data for cantilever,

Q: iece of iron was placed in a bowl of liquid and left for a day. It was found that the iron piece…

A: given:weight loss w=0.25gk=87.6A=20cm2

Q: 1- What part in the picture was exposed to corrosion? 2- In the picture above, what are the…

A: 1.In the given fig. a bolt and a washer are exposed to corrosion. Corrosion on the surface of the…

Q: What are the factors that influence on corrosion behavior?

A: When metals come in contact with other substances such as air, water, and many more, they react with…

Q: Localised corrosion of metal pipes were observed in a seawater pumping plant. The pipes were used to…

A: Solution (c): Given Data: Average pH : 7.2

Q: 17.11 A piece of corroded metal alloy plate was O found in a submerged ocean vessel. It was es-…

Q: identify the current approaches adopted to protect components from corrosion in the oil and gas…

Q: 50 mm 10 mm Specimen 20 mm HCL - 6 Molar 30 g mass = 60 mm Calculate the corrosion rate in…

A: given data ,Time=22 daysfinal mass(m)=15 kgrate of corrsim=change in surface densitytime…

Q: 4. Which surface property is crucial for the corrosion resistance of metallic biomaterials?

A: Metallic biomaterials are basically engineering materials and alloys that are used in the medical…

Q: Choose the correct answer. A material that has high bond energy and high bond stiffness is expected…

A: The high strength material possesses smaller grain size. The magnetic permeability and electrical…

Q: If copper, brass, aluminum or stainless steel were substituted for iron, corrosion would not occur.…

A: Note: There are two question both are entirely different so only first one has been answered because…

Q: Question 3: : Estimate the corrosion rate (g/cm².s), penetration rate (mm/yr), and Ecorr (V) for a…

A: This problem is related to fluid mechanics. Fluid mechanics is the subject of mechanical engineering…

Q: corrosion occurs only when the surrounding häö JS Ell Js: environment or medium is عندما يكون الوسط…

A: Corrosion can be classified into two - Dry corrosion - in this corrosion, there is no need of water…

Q: Question 2 Estimate the corrosion rate (g/em².s), penetration rate (mm/yr), and Ecor (V) for a zinc…

A: To find: The corrosion rate, penetration rate, and EcorrV for a zinc tank containing oxygen free…

Q: In galvanic corrosion, Select one: a. The combination of a large anode and small cathode is the…

Q: Explain these factors that affect electrochemical corrosion rate 1). Impurities 2). Presence of air…

A: Causes of electrochemical corrosion The more the reactivity of metal, the more will be the…

Q: How many grams of metallic copper would be deposited by electrolysis of 100 g * ?CuSO4 in aqueous…

A: m=Mass of CuSO4=100 g

Q: In preventing corrosion of iron, a stronger reducing agent called sacrificial anode such as zinc is…

A: Sacrificial anode: The sacrificial anode are the alloys or metals that have more anodic or less…

Q: How do degradation and corrosion affect material property?

A: The meaning of Degradation is loss of quantity of material or it can be said that the deterioration…

Q: In order to increase corrosion resistance, a 2-mm-thick cladding of aluminum has been added to a…

A: Given: b=50 mmd=30 mmbs=46 mmds=26 mmM=300 N-mEs=200 GPaEa=70 GPa The ratio of the modulus of the…

Q: Compare corrosion rate for a metallic sample immersed in acidic solution with that immersed in a…

A: Corrosion is defined as an attack on a material as a result of chemical, frequently electrochemical…

Q: The following factors play vital role in a corrosion process a. Temperature b. none of these c.…

Q: (a) Using sketches, describe the carburisation process for steel components. (b) The yield stress…

Concept explainers

Classification of types of corrosion

Corrosion is described as the process in which a certain element is degraded or deteriorated due to the presence of multiple chemicals in the surrounding. Generally, corrosion happens if all the subatomic particles on a metallic object are oxidized, for example, rust on iron structures. In air or water, metals lose electrons to other particles (like oxygen), leading to the formation of an oxide with the metal.

Question

A corrosion cell is composed of a 20 cm² copper sheet and a 400 cm² iron sheet, with a current density of 0.7 A/cm² applied to the copper. Which material is the anode? What is the rate of loss of metal from the anode per hour?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

If you have three elements with an oxidation potential of both of them, as shown below: 1. Tin = 0,14 - 2 iron = 0,77 + 3. Platinum = 1.2 + Find the cell voltage in the case of a correlation: A. Iron and tin expose them to the electrolyte environment, and any metal will corrode b. Tin and platinum expose it to the electrolytic environment, and any metal will corrode. 4:56 PM
The resistance of a copper wire is (0.92 Q) at a temperature of (4 oC). At what temperature will be resistance be (1.06 Q)?
Which of the following statements are true? (This question has more than one correct answer) a. Higher thermal conductivity in metals arises in part from the properties of the free electron model of metals b. Dislocations and imperfections reduce the efficiency of phonon heat transfer c. Significant heat transfer occurs by both phonons and electron energy level excitation in both metals and ceramics d. Dislocations and imperfections increase the efficiency of phonon heat transfer
A piece of iron was placed in a bowl of liquid and left for a day. It was found that the iron piece lost a weight of 0.25 g. Calculate the corrosion rate (mm / y) using the value of 87.6 = K and the surface area exposed to corrosion is 20 * square centimeters
Engineering science Distinguish elastic, electrical and magnetic hysteresis in different Materials.
3. The temperature dependence of the resistivity of copper and copper - nickel alloys is shown in the figure below. Explain the reason why the resistivity is increased with Ni amount. What is the residual resistivity? Explain it. t Pres C Cu-3 at.% Ni Cu-2 at.% Ni Cu-1 at.% Ni Cu
Fill in the table below? Which corrosion are seen in the figures? Briefly explain causes and preventations of these corrosions.
what is a metal and what characteristics does it have in sense of electrical conductivity
:Dry Corrosion consider as Both None Physical reactions Electrochemical reactions هذا السؤال مطلوب O O O O
3- Compare corrosion rate for a metallic sample immersed in acidic solution with that immersed in a salt solution. 4. What is the offeat
Distinguish elastic, electrical and magnetic hysteresis in different materials.
Factors that affect electrochemical corrosion