For drive-in diffusion of boron in silicon at Tad = 1373 K (drive-in diffusion temperature),determine the drive-in diffusion time ta if the junction depth is 3 μm. Let Qo3.0 × 1018 atoms/m², CB = 0.85 x 1020 atoms/m³. For diffusion, let Qa 3.75 eV/atom andDo = 2.4 × 10-3 m²/s.=

Answered: Image /qna-images/answer/323c786c-f0c6-439a-8361-602d39da4910.jpg

Answered: For drive-in diffusion of boron in…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

3. Calculate the pressure (in Pa) of argon gas required to produce a collision rate of 4.5 x 102⁰ s-1 at 425 K on a circular surface of diameter 1.95 mm.
You are given three unknown samples stored in screw-cappedcontainers and was told to analyse them. You noted that Container A iscloudy and have some particles that are staying near the bottom of thecontainer. Container B is translucent while Container C is transparent. If thecontents of Container A can be separated by simple decantation,what isthe particle size that BEST describes its composition?i. <1 nmii. 1 nmiii. 1 nm-100 nmiv. >1000 nm
Aromatic molecules like those in perfume have a diffusion coefficient in air of approximately 2 x 10^-5 m^2/s. Estimate to one significant figure how many hours it takes perfume to diffuse 1.5m, about 4 ft, in still air.
The viscosity of helium, He, is 1.88 x 10-5 Pa at 0 °C. Calculate the collision diameter of the gas.
The diffusion rate for a solute is 4.0 × 10-11 kg/s in a solvent-filled channel that has a cross-sectional area of 0.50 cm2 and a length of 0.20 cm. What would be the diffusion rate m/t in a channel with a cross-sectional area of 0.30 cm2 and a length of 0.10 cm?
What is the greatest average speed ?v of blood flow at 37∘C in an artery of radius 2.00 mm if the flow is to remain laminar? Take the density of blood to be 1025 kg/m3, and the viscosity to be 2.084×10−3 Pa·s.
During the discussion of gaseous diffusion for enriching uranium, it was claimed that 235UF6 diffuses 0.4% faster than 238UF6. Show the calculation that supports this value. The molar mass of 235UF6 = 235.043930 + 6 x 18.998403 = 349.034348 g/mol, and the molar mass of 238UF6 = 238.050788 + 6 x 18.998403 = 352.041206 g/mol.
Estimate the time needed for a glycine molecule to diffuse a distance of 27 μmμm in water at 20 ∘C∘C if its concentration varies over that distance from 1.16 mol/m3mol/m3 to 0.40 mol/m3?
Using the Poiseuille formula, the viscosity of carbon dioxide was measured by comparing its flow rate through a long, narrow tube with that of argon. For the same pressures, the same volume of carbon dioxide passed through the tube in 55 s as argon in 83 s. The viscosity of argon at 25 °C is 208 μP. What is the viscosity of carbon dioxide? Give your answer in μP
Helium gas is diffusing through a uniform tube 0.2 m long containing an equal amount of nitrogen gas at 298 K and constant pressure 1.00 atm. The partial pressure of helium gas at one end of the tube is 0.2 atm and 0.1 atm at the other end. The diffusivity of the gases is 0.703 x 10-4 m2/s. Calculate the diffusion flux of both helium and nitrogen at steady state. (R = 8.314 J K-1 mol-1 = 0.08206 L atm K-1 mol-1)
The purification of hydrogen gas is possible by diffusion through a thin palladium sheet. Calculate the number of kilograms of hydrogen that pass per hour through a 2.8 mm thick sheet of palladium having and area of 0.72 m^2 at 500 C. Assume a diffusion coefficient of 7.8 x 10^-8 m^2/s, that the concentrations at the high- and low- pressure sides of the plates are 3.4 and 0.58 kg/m^3 of hydrogen per cubic meter of palladium, and that steady-state conditions have been attained.
High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa) to about 60,000 kPa (60,000,000 Pa). It is often convenient to know the pressure in torr. If an HPLC procedure is running at a pressure of 1.45x107 Pa, what is its running pressure in torr? Express the pressure numerically in torr. ► View Available Hint(s) 1.45x107 Pa = VE ΑΣΦ ? torr

SEE MORE QUESTIONS

Recommended textbooks for you

Chemistry

ISBN:

9781305957404

Author:

Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

Chemistry

ISBN:

9781259911156

Author:

Raymond Chang Dr., Jason Overby Professor

Publisher:

McGraw-Hill Education

Principles of Instrumental Analysis

Chemistry

ISBN:

9781305577213

Author:

Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:

Cengage Learning

Chemistry

ISBN:

9781305957404

Author:

Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

Chemistry

ISBN:

9781259911156

Author:

Raymond Chang Dr., Jason Overby Professor

Publisher:

McGraw-Hill Education

Principles of Instrumental Analysis

Chemistry

ISBN:

9781305577213

Author:

Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:

Cengage Learning

Organic Chemistry

Chemistry

ISBN:

9780078021558

Author:

Janice Gorzynski Smith Dr.

Publisher:

McGraw-Hill Education

Chemistry: Principles and Reactions

Chemistry

ISBN:

9781305079373

Author:

William L. Masterton, Cecile N. Hurley

Publisher:

Cengage Learning

Elementary Principles of Chemical Processes, Bind…

Chemistry

ISBN:

9781118431221

Author:

Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard

Publisher:

WILEY

SEE MORE TEXTBOOKS

For drive-in diffusion of boron in silicon at Tad = 1373 K (drive-in diffusion temperature), determine the drive-in diffusion time ta if the junction depth is 3 μm. Let Qo 3.0 × 1018 atoms/m², CB = 0.85 x 1020 atoms/m³. For diffusion, let Qa 3.75 eV/atom and Do = 2.4 × 10-3 m²/s. =