# 1.17. Imagine holding a rubber band in a heat bath of temperature T and suddenly increasing the tension from f to f+Af. After equilibrating, the entropy of the rubber band, S(T, ƒ + Af, n), will differ from its initial value S(T, f, n). Compute the change in entropy per unit mass for this process assuming the rubber band obeys the equation of state given in Exercise 1.16.

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