Bulk Modulus Of The Femi Gas Show That The Contribution

Bulk modulus of the Femi gas show that the contribution of the kinetic energy to the bulk modulus of the electron gas at absolute zero is B = 1/3nmv2/F. It is convenient to use (6.60). We can use our result for B to find the velocity of sound, which in a compressible fluid is v = (B/p)1/2, where v = (m/3M)l/2 vF, in agreement with (46). These estimates neglect attractive interactions.

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