Biomedical Instrumentation Systems
1st Edition
ISBN: 9781133478294
Author: Chatterjee
Publisher: Cengage
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Calculate the diffusion constant of nitrogen at 20.0 ̊C and 100.0 Pa, with = 0.43 nm^2 .
An elastomer is a polymer that can stretch and contract. In a perfect elastomer the force opposing extension is proportional to the displacement x from the resting state of the elastomer, so |F| = kfx, where kf is a constant. But suppose that the restoring force weakens as the elastomer is stretched, and kf(x) = a − bx1/2. Evaluate the work done on extending the polymer from x = 0 to a final displacement x = l.
How is energy evolved in depositionrelated to those for condensationand freezing?
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