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A COMPARISON BETWEEN THE KINETIC THEORY OF - page 14 / 25

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(2.20)

When this is done, the expression for the heat flux plus the work flux is obtained:  

  (2.21)

(2.22)

(2.23)

(2.24)

The contribution is the kinetic transport of kinetic, intramole-cular, an intermolecular energy. The contributions , , and represent the work done against external, intramolecular, and inter-molecular forces. The structure of these last three contributions is closely related to the analogous contributions to the momentum flux tensor.

2d. Solution to the Fokker-Planck equation

To get the one-molecule phase-space distribution function needed for describing the behavior of polymer solutions, one can derive and solve an equation of the Fokker-Planck type. This equation is:

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