We apply a voltage of 10 V to Fcc an aluminum wire 2 mm diameter and 20 m long , if 10 % of the valence electrons carry the electrical charge , the parameter of cell α = 0. 4049 nm , electrical conductivity σ = 3.77 ×105 cm-1. Ω-1. , calculate the average drift velocity of the electrons in m/sec

We apply a voltage of 10 V to Fcc an aluminum wire 2 mm diameter and 20 m long , if 10 % of the valence electrons carry the electrical charge , the parameter of cell α = 0. 4049 nm , electrical conductivity σ = 3.77 ×105 cm-1. Ω-1. , calculate the average drift velocity of the electrons in m/sec

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 22P

See similar textbooks

Similar questions

The forward-bias voltage (V) required to maintain a PN diode current (I) is a function of the temperature (T). (a) Derive an expression for δV/δT (b) What is a typical value for a silicon diode? (c) Compare the result of (b) with a numerical value extracted.
A conductivity cell was calibrated using 0.01 M KCl (κ = 1.4087x10-3 S/cm) and the measured resistance was 688 Ω. a. Determine the cell constant (include units). b. Determine the molar conductivity, Λm for a 0.0100 M AgNO3 solution in the same cell with a resistance reading of 777Ω.
An atomic beam is designed to function with (a) cadmium, (b) mercury. The source is an oven maintained at 380K with a small slit of dimensions 1.0cm x 1.0 x 10-3cm. The vapor pressure of cadmium is 0.13 Pa nd that of mercury is 12 Pa at this temperature. What is the atomic current (the number of atoms per second) in the beams?
The mobility of the NH4+ ion is known is 7,623 x 10 ^-8 m2/Vs. Count:a. The molar conductivity of the NH4+ ionb. Ion velocity, when a voltage of 15 V is applied to the cell with separate electrodes 25 cm awayc. The transport number of NH4 + ions in CH3COONH4 solution if the ion is mobility CH3COO is 4.239 x 10-8 m2/Vsd. The amount of current carried by the NH4+ and CH3COO ions when the appliance set is connectedwith a coulometer I2 electrolyzed for 60 minutes as much as 50 mL. 10 mL of This solution was reacted with 20 mL of 0.05 M Na2S2O3 solution according to the following reaction:2S2O32- + I2 → S4O62- + 2I-
The classical dissociation constant of propionic acid, C2H5CO2H, is 1.34 x10-5 moldm-3 at 250C and the limiting molar conductivities at zero concentration of hydrogen and propionate ions are 349.8 and 35.8 ohm-1 cm2 mol-1 respectively. Calculation of the resistivity of 0.100 M solution of propionic acid.
2) Name the advantages of glass electrode in potentiometric measurements (please write correctly and concisely).
Zinc is to be used as an internal standard for the polarographic analysis of thallium. A standard solution containing twice the concentration of zinc as Thallium has a diffusion current of 1.89 µA for Ti and 3.50 µA for Zn. A 10.0g alloy was dissolved in 500 mL, 25 mL of this solution was mixed with 25 mL of 1.0 x 10-3 M Zn 2+ solution. The diffusion currents of this final solution are 18.2µA for Tl+ and 14.5µA for Zn+. Calculate % Ti in the sample analysed
A conductivity cell filled with a 0.01 M KCl solution was found to have a resistance of 189 ohms at 25oC. When filled with 0.01 M HCl solution, the cell gave a resistance of 64.8 ohms at the same temperature. At 25oC, the conductivity of 0.01 M KCl solution was 1.4088 x 10-3 S cm-1. Calculate (a) the cell constant and (b) the conductivity of the HCl solution. answer is [0.266; 4.105 x 10-3] please explain. thank you!
A cylindrical sample of solid germanium has length 55.0 mm and diameter 5.0 mm. In a test circuit, 0.150 A of current flowed through this sample when the voltage applied between its ends was 17.5 V. What is the electricalconductivity of this sample?
A conductivity cell has a resistance of 250 Ω when filled with 0.02 M KCl at 25°C and 105 Ω when filled with 6 x 10-5 M ammonium hydroxide solution. The conductivity of 0.02 M KCl solution at 25°C is 0.277 Sm-1, and the limiting molar ionic conductivities of NH4 + and OH- are 7.34 x 10-3 and 0.0198 S m2mol-1 , respectively. Calculate the cell constant and degree of dissociation of ammonium hydroxide in the 6 x 10-5 M solution.
b) In one conductivity cell, the resistance of a 0.1 M KCl solution is 1.5x102 Ω. The knownmolar conductivity of the solution is 101 Ω-1 cm2 mol-1 . Calculate the cell constant, Kcell. (Kcell unit is cm-1).
The electrical resistance of a column of 0.05 M NaOH solution of diameter 1 cm and length 50 cm is 5.55 × 103 ohm. Calculate its resistivity, conductivity and molar conductivity.