jamal33-avatar

Stefan Boltzmaan Law?

"In the SB Law, it states E=σT^4 I'm trying to find the temperature, so T= 4√E/σ, or T=√E/5.67x10^8 What do I sub in for E.. is it incoming or outgoing radiation? How do I solve the bottom of that fraction?"
over 13 years ago
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6 replies

over 13 years ago
andreasphd-avatar
"T is the (negative) difference between the temperatures, if the radiation is incoming & is absorbed. If the body radiates (losing energy or outgoing) then it is the other way; T > 0. I take it that you meant √√(E/σ) = 4√E/σ. σ = 5.669 X 10‾⁸W/m²K⁴, the expression then becomes T = √√(E/σ) = [√√E] / [√√5.669 X 10‾⁸] = 64.805[√√E]. This way it is better to split up the E & σ parts; with the latter becoming a 'constant' multiplier. Now choose your 'E' value take the square root of its square root & multiply it with 64.805 to get the difference between the temperatures."
about 13 years ago
dharmanand-avatar
"The particular Stefan–Boltzmann law, generally known as Stefan's law, is often a regards which often explained the ability radiated coming from a black body when it comes to it's heat range. Especially, the particular Stefan–Boltzmann legislation declares that this complete strength radiated for each model area of any black body across most wavelengths for each system time period (generally known as the actual pitch-black-body irradiance or even emissive electrical power), , can be specifically relative for the biquadrate with the african american human body's thermodynamic temperatures Metric ton: "