Question: (a) Derive the Lagrangian equation (13.75) for the rate of increase of entropy in a dissipative fluid by carrying out the steps in the sentence

(a) Derive the Lagrangian equation (13.75) for the rate of increase of entropy in a dissipative fluid by carrying out the steps in the sentence preceding that equation.

(b) From the Lagrangian equation of entropy increase (13.75) derive the corresponding Eulerian equation (13.76).

T ds [P(d/) + dt +V. )]= Fcond T = 50 +2no:

0 + K T (VT), (13.75)

T ds [P(d/) + dt +V. )]= Fcond T = 50 +2no: 0 + K T (VT), (13.75)

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