Indicate the options for an electrified interface:1. Temperature has no influence on it.2. Not all theories that describe it include a well-defined electrical double layer.3. Under favorable conditions, its differential capacitance can be determined with the help of experimental measurements.4. A component with high electronic conductivity is involved in its formation.

Indicate the options for an electrified interface:1. Temperature has no influence on it.2. Not all theories that describe it include a well-defined electrical double layer.3. Under favorable conditions, its differential capacitance can be determined with the help of experimental measurements.4. A component with high electronic conductivity is involved in its formation.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter22: Inorganic Materials

Section: Chapter Questions

Problem 55AP

See similar textbooks

Similar questions

what is liquid junction potential ?
At an electrified interface according to the Gouy-Chapman model, what types of interactions do NOT occur between the ions and the solvent according to this theory?
10. Which of the following is known as indirect band gap semiconductors? Germanium Nickel Platinum Carbon
At room temperature (i.e., 300 K), a semiconductor made of gallium arsenide (GaAs) has an intrinsic electron concentration (ni) of 1.8×10^6 cm^-3 , an electron mobility (μe) of 8500 cm^2 V^1 s^-1 , and a hole mobility (μh) of 400 cm^2 V^-1 s^-1 . \ (a) Calculate the intrinsic electric conductivity and resistivity of GaAs at 300 K. (b) When GaAs is doped with an ionized donor concentration of 10^15 cm^-3 , where is the Fermi level? Calculate the electric conductivity of the doped GaAs. (c) If the semiconductor sample discussed in (b) is further doped with an ionized acceptor concentration of 9×10^14 cm^-3 , what is the free hole concentration and electric conductivity of the sample?
The band gap of gallium phosphide is 2.26 eV, which makes it appropriate for producing yellow LEDs, although the yellow color is rarely useful on its own (think a yellow laser pointer). One can alter the band gap of GaP, changing the emission color to red or green. Propose the ways to produce these two colors by (1) chemical (compositional) and (2) physical (non-compositional) modifications of the material.
Use molecular orbital band diagrams to explain why metals are good conductors but semiconductors are not.
Explain how metallic conductors, semiconductors, and insulators are identified and explain their properties in terms of band theory. Why is graphite an electronic conductor and diamond an insulator?
PART B Q1 (a) Figure 5 shows the type of point defects that may presence in a metal. Compare the characteristics between the point defects occurred at point 1 and point 3. Figure 5: Possible point defects in a metal material (b) The equilibrium number of vacancies in an aluminium plate at the temperature of 500 °C is 7.57 × 10²3 m³³. The atomic weight and density for aluminium are 26.98 g/mol and 2.62 g/cm³, respectively. Calculate the activation energy for vacancy formation in aluminium. (c) Describe with illustration a point defect that may presence in silicon dioxide crystal structure. Q2 (а) Discuss with suitable example the influence of crystal structure of the solvent iron, Fe lattice to the diffusivity of carbon atom in the formation of a steel alloy. (b) Discuss the possible diffusion that take places in the making of electronic integrated circuit wafer with help of suitable diagram.
6. In your laboratory notebook, draw an energy diagram for your semiconductor sample. On your energy diagram, draw the transitions showing the absorption of the blue-violet photon (4.5x10") and the fluorescence (emission) of the yellow photon (3.5x10"]). Make sure to adjust the energy diagram (1e. the single conduction band and the single valence band) on the scale and to adjust your arrows' length and direction so that they are consistent with the photons described.
a. What is the material that can naturally have electrons able to move across the band gap when supplied with additional energy (for example, pure silicon)? Oinsulator intrinsic semiconductor extrinsic semiconductor metal b. What is the name of the material that results from the addition of dopants to pure element in order for it to conduct electricity (for example, 0.0001% Al in Si)? O insulator O intrinsic semiconductor extrinsic semiconductor O metal
Why are resistors important in an electrical circuit? ) Resistors only allow a current to flow in one direction and can change alternating currents to direct currents. Resistors are electrical components that help to control the flow of the current in a circuit; they restrict the flow of electrons. ) Resistors consist of two pieces of conducting material separated by an insulating material called a dielectric. They are often used as timing devices, but they can transform electrical currents in other ways, too. ) Resistors can switch tiny electric currents on and off or amplify them.
Image shows a part of the phase diagram typical of a simple steel. Describe what would be observed as the melt at a is allowed to cool to room temperature.