Assuming your skin temperature is 37.2 ∘C and the temperature of your surroundings is 23.8 ∘C, determine the length of time required for you to radiate away the energy gained by eating a 306-C ice cream cone. Let the emissivity of your skin be 0.915 and its area be 1.37 m2.
Heat loss, Q = e s (T1^4 - T2^4) A
Q = 0.915 x 5.67 x 10^-8 x (310.35^4 - 296.95^4) 1.37
Q = 106.71 W = 91.82 kcal/hr
Time, t = 306000/91816.59 = 3.33 hr
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Assuming your skin temperature is 37.2 ∘C and the temperature of your surroundings is 23.8 ∘C,...