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Hydrogen is used in some semiconducting devices to improve their performance. Consider a material in which...

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Physics

Hydrogen is used in some semiconducting devices to improve theirperformance. Consider a material in which atomic hydrogen (H)diffuses at 1.8 × 10-24 m2/s at 329 K.

1) When in use, the device is exposed to a large electric field.If the force on each charged hydrogen nucleus is 10 -11N, use the fluctuation-dissipation relation to find out how fastthey drift in the field at 329 K.

Answer & Explanation Solved by verified expert
4.0 Ratings (428 Votes)
The question is a fairly straight forward one The diffusionconstant or the diffusivity is just the rate at which moleculesdiffuse from a higher concentration to lower concentration due torandom motion So higher the diffusivity the faster the moleculeswill diffuse through our device    See Answer
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