Solve 3 please **Text Transcription for Educational Website:**---3. A steel plate of area 100 cm² is undergoing a corrosion process resulting in a weight change of 2.89 x 10⁻⁵ gm/s. The equivalent current density associated with this process is:a. 10 mA/cm² b. 1 mA/cm² c. 100 mA/cm² d. 0.10 mA/cm² 4. The thermodynamics of a passivation process can be examined using:a. Mixed potential theory or Evan’s diagrams. b. Potential-pH or Pourbaix diagrams. c. Linear sweep voltammetry. d. The electrochemical series of reduction potentials.---**Explanation of Concepts:**- **Current Density:** This is a measure of the electric current per unit area of cross-section. It is an important parameter in the analysis of corrosion processes.- **Passivation Process:** This refers to the phenomenon where a material becomes less affected by environmental factors due to the formation of a protective layer on its surface.**Discussion on Diagrams:**- **Evan’s Diagrams (Mixed Potential Theory):** These diagrams are used to understand the behavior of electrochemical cells, emphasizing the balance between anodic and cathodic reactions.- **Pourbaix Diagrams (Potential-pH Diagrams):** These are graphical representations that show the stability of different phases (e.g., metal, oxide, and solution species) as a function of potential and pH.- **Linear Sweep Voltammetry:** This is an electrochemical technique used to study the reactivity of substances and is helpful in investigating passivation layers.- **Electrochemical Series:** This series lists elements according to their standard electrode potentials and is useful for understanding the tendencies of different metals to corrode.These concepts and tools are crucial for analyzing and predicting the behavior of metals in corrosive environments.

To calculate equivalent current densitygiven, area of the steel plate, weight change

Answered: 3. A steel plate of area 100 cm² steel…

3. A steel plate of area 100 cm² steel is undergoing a corrosion process resulting in a weight change of 2.89 x 10-5 gm/s. The equivalent current density associated with this process is

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

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Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.71P: 1.71 The thermal conductivity of silver at 212°F is 238 Btu/h ft °F. What is the conductivity in SI...

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Crystalline Imperfections

The crystalline imperfections are described as the geometrical defects in the crystal due to incorrect arrangement of atoms, impurity, vacancy, and many more. It is not possible to achieve a perfect or ideal crystal, practically.

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Solve 3 please

**Text Transcription for Educational Website:**

---

3. A steel plate of area 100 cm² is undergoing a corrosion process resulting in a weight change of 2.89 x 10⁻⁵ gm/s. The equivalent current density associated with this process is:

a. 10 mA/cm²
b. 1 mA/cm²
c. 100 mA/cm²
d. 0.10 mA/cm²

4. The thermodynamics of a passivation process can be examined using:

a. Mixed potential theory or Evan’s diagrams.
b. Potential-pH or Pourbaix diagrams.
c. Linear sweep voltammetry.
d. The electrochemical series of reduction potentials.

---

**Explanation of Concepts:**

- **Current Density:** This is a measure of the electric current per unit area of cross-section. It is an important parameter in the analysis of corrosion processes.

- **Passivation Process:** This refers to the phenomenon where a material becomes less affected by environmental factors due to the formation of a protective layer on its surface.

**Discussion on Diagrams:**

- **Evan’s Diagrams (Mixed Potential Theory):** These diagrams are used to understand the behavior of electrochemical cells, emphasizing the balance between anodic and cathodic reactions.

- **Pourbaix Diagrams (Potential-pH Diagrams):** These are graphical representations that show the stability of different phases (e.g., metal, oxide, and solution species) as a function of potential and pH.

- **Linear Sweep Voltammetry:** This is an electrochemical technique used to study the reactivity of substances and is helpful in investigating passivation layers.

- **Electrochemical Series:** This series lists elements according to their standard electrode potentials and is useful for understanding the tendencies of different metals to corrode.

These concepts and tools are crucial for analyzing and predicting the behavior of metals in corrosive environments.

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