Question

3) The Earth has an average surface temperature of approximately 300 K. Calculate the power per unit area released by the surface of the Earth and report the value below. Units are a must. (2 points)
Power per unit area released by the Earth=

Answer 1

Answer:

Power per unit area released by the Earth is 459.30 Watt per meter square.

Explanation:

Stefan-Boltzmann Law  is given as:

$\frac{Power}{Area}=\sigma T^4$

Where:

$\sigma =5.6704\times 10^{-8} Watt/m^2K^4$ Stefan-Boltzmann constant

T = Absolute temperature of the body

The Earth has an average surface temperature of approximately,T= 300 K

Power per unit area released by the Earth :

$=5.6704\times 10^{-8} Watt/m^2K^4\times (300 K)^4=459.30 Watt/m^2$