Question

Flying Circus of Physics The figure gives the force magnitude F versus stretch distance x for a rubber band, with the scale of the F axis set by Fs-4.20 N and the scale of the x axis set by xs = 3.50 cm. T temperature is 4.00°C, when the rubber band is stretched by x = 5.00 cm, at what rate does the entropy of the rubber band change during a small additional stretch? F(N) x (cm) Number Units Use correct number of significant digits, the tolerance is +/-2%

Answer 1

The spring constant is calculated as, 4.20 N 3.50x10 m 120N/m The rate of change of the entropy for a small additional stretch is, crT (120N/m) (5.0x10m) 277K =2.16×10-2 J/K-m