Answer to Question #114681 in Physics for kenny

Question

Determine the time in seconds taken for the temperature to fall from 68.0oC to 62.1oC. Measure the rate of fall at temperature 68.0oC and 62.1oC.

Answer 1

$$T-T_s=(T_o-T_s)e^{-kt}$$

$$62.1-0=(68-0)e^{-0.277t}$$

$$t=0.328\ s$$