Enter the absolute temperature (K) and the Stefan’s Constant (5.67*10^-8 W/m^2/K^4) into the calculator to determine the Radiant Energy.
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Radiant Energy Formula
The following equation is used to calculate the Radiant Energy.
RE = σ * T^4
- Where RE is the Radiant Energy (Joules)
- T is the absolute temperature (K)
- σ is the Stefan’s Constant (5.67*10^-8 W/m^2/K^4)
How to Calculate Radiant Energy?
The following example problems outline the steps and information needed to calculate the Radiant Energy.
Example Problem #1
- First, determine the absolute temperature (K). In this example, the absolute temperature (K) is determined to be 5 .
- Next, determine the Stefan’s Constant (5.67*10^-8 W/m^2/K^4)
- Finally, calculate the Radiant Energy using the formula above:
RE = σ * T^4
Inserting the values from above and solving the equation yields:
RE = 5.67*10^-8 * 5^4 = .0000354 (Joules)
Example Problem #2
Using the same method as above, first, we need to measure or determine the variables required by the equation. For this example problem, these are provided as follows:
absolute temperature (K) = 6
Stefan’s Constant (5.67*10^-8 W/m^2/K^4)
Enter these given values into the calculator or above yields: RE = σ * T^4 = .0000734 (Joules)
