Assume that the total surface area of a human body is 1.6 m 2 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 σ is 6.0 × 10 −8 W m −2 K −4 .

Question

Philoid · Accepted Answer

Given-
Area of the body, A = 1.6 m²

Temperature of the body, T = 310 K
We know from Stefan-Boltzmann law, we have-

= σAT⁴

Where,

A is the area of the body

σ is the Stefan-Boltzmann constant

σ = 6 × 10⁻⁸ W m⁻² K⁻⁴.

Therefore,

Energy radiated per second = 1.6 × 6 × 10⁻⁸ × (310)⁴
= 886.58

≈887 J

Assume that the total surface area of a human body is 1.6 m2 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 σ is 6.0 × 10−8 W m−2 K−4.

Assume that the total surface area of a human body is 1.6 m² 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 σ is 6.0 × 10⁻⁸ W m⁻² K⁻⁴.