Question

Assume that the total surface area of a human body is 1.6m² and that it radiates like an ideal radiator. Calculate the amount of energy radiated per second by the body if the body temperature is 37°C. Stefan constant o is 6.0 x 10^-8W/m²-K⁴.

Answer 1

A = 1.6m², 

T = 37°C = 310K, 

σ = 6.0 × 10^–8w/m²-K

Energy radiated per second
= AσT⁴ = 1.6 × 6 × 10^–8 × (310)⁴ = 8865801 × 10^–4 = 886.58 ≈ 887J