Question
Following vigorous exercise, the body temperature of an 80.0-kg person is $40.0^\circ\textrm{C}$. At what rate in watts must the person transfer thermal energy to reduce the the body temperature to $37.0^\circ\textrm{C}$ in 30.0 min, assuming the body continues to produce energy at the rate of 150 W? (1 watt = 1 joule / second or 1W = 1 J/s).

$617 \textrm{ W}$

Solution Video