galvanize

Examples of galvanize in the following topics:

• Free Energy and Cell Potential

  • In a galvanic cell, where a spontaneous redox reaction drives the cell to produce an electric potential, the change in Gibbs free energy must be negative.
  • The basis for an electrochemical cell, such as the galvanic cell, is always a redox reaction that can be broken down into two half-reactions: oxidation occurs at the anode, where there is a loss of electrons, and reduction occurs at the cathode, where there is a gain of electrons.
  • In a galvanic cell, where a spontaneous redox reaction drives the cell to produce an electric potential, the change in Gibbs free energy must be negative.
  • If E°cell > 0, then the process is spontaneous (galvanic cell)

• Preventing Corrosion

  • The corrosion-prone iron alloy steel is commonly coated with zinc, a more active metal, in a process known as galvanizing.
  • Galvanic sacrificial anode attached to the hull of a ship; here, the sacrificial anode shows corrosion but the metal it is attached to does not.
  • The galvanic anode continues to corrode, consuming the anode material until eventually it must be replaced, but the cathodic material is protected.
  • Protecting iron alloys with a coating of a more active metal through the process of galvanizing prevents the alloys from corroding.

• Electrochemical Cell Notation

  • Cell notations are a shorthand description of voltaic or galvanic (spontaneous) cells.
  • A typical arrangement of half-cells linked to form a galvanic cell.

• Standard Reduction Potentials

  • In this galvanic cell, zinc reduces copper cations.

• Equilibrium Constant and Cell Potential

  • Schematic of a galvanic cell for the reaction between Zn and Cu.
  • Calculate the equilibrium constant, K, for a galvanic cell using the Nernst equation

• Electrolytic Cells

  • Electrolysis can sometimes be thought of as running a non-spontaneous galvanic cell.

• The Nernst Equation

  • Find the cell potential of a galvanic cell based on the following reduction half-reactions where [Ni2+] = 0.030 M and [Pb2+] = 0.300 M.

• Concentration of Cells

• Voltaic Cells

  • This kind of cell includes the galvanic, or voltaic, cell, named after Luigi Galvani and Alessandro Volta.

• The New Right

  • Johnson, galvanized the formation of a new political movement.
  • An icon of the American conservative movement, Reagan is credited by his supporters with transforming the politics of the United States, galvanizing the success of the Republican Party.