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Emissive Power of Blackbody Formula

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Emissive Power of Blackbody is the energy of thermal radiation emitted in all directions per unit time from each unit area of a surface of blackbody at any given temperature. Check FAQs

E b = [Stefan-BoltZ] \cdot (T^{4})

E_b - Emissive Power of Blackbody?T - Temperature of Blackbody?[Stefan-BoltZ] - Stefan-Boltzmann Constant?

Emissive Power of Blackbody Example

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Here is how the Emissive Power of Blackbody equation looks like with Values.

Here is how the Emissive Power of Blackbody equation looks like with Units.

Here is how the Emissive Power of Blackbody equation looks like.

324.2963 = 5.7E-8 \cdot (275^{4})

324.2963W/m² = 5.7E-8 \cdot ({275K}^{4})

324.2963 = 5.7E-8 \cdot (275^{4})

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Emissive Power of Blackbody Solution

Follow our step by step solution on how to calculate Emissive Power of Blackbody?

FIRST Step Consider the formula

E b = [Stefan-BoltZ] \cdot (T^{4})

Next Step Substitute values of Variables

∴

E b = [Stefan-BoltZ] \cdot ({275K}^{4})

Next Step Substitute values of Constants

∴

E b = 5.7E-8 \cdot ({275K}^{4})

Next Step Prepare to Evaluate

∴

E b = 5.7E-8 \cdot (275^{4})

Next Step Evaluate

∴

E b = 324.296262683594W/m²

LAST Step Rounding Answer

∴

E b = 324.2963W/m²

Emissive Power of Blackbody Formula Elements

Variables

Constants

Emissive Power of Blackbody

Emissive Power of Blackbody is the energy of thermal radiation emitted in all directions per unit time from each unit area of a surface of blackbody at any given temperature.

Symbol: E_b

Measurement: Heat Flux DensityUnit: W/m²

Note: Value should be greater than 0.

Formulas to find Emissive Power of Blackbody

Temperature of Blackbody

Temperature of Blackbody is defined as the degree of hotness or coldness of blackbody.

Symbol: T

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Temperature of Blackbody

Stefan-Boltzmann Constant

Stefan-Boltzmann Constant relates the total energy radiated by a perfect black body to its temperature and is fundamental in understanding blackbody radiation and astrophysics.

Symbol: [Stefan-BoltZ]

Value: 5.670367E-8

Other formulas in Radiation Formulas category

Go Absorptivity given Reflectivity and Transmissivity

α = 1 - ρ - 𝜏

Go Area of Surface 1 given Area 2 and Radiation Shape Factor for Both Surfaces

A 1 = A 2 \cdot (\frac{F 21}{F 12})

Go Area of Surface 2 given Area 1 and Radiation Shape Factor for Both Surfaces

A 2 = A 1 \cdot (\frac{F 12}{F 21})

Go Emissive Power of Non Blackbody given Emissivity

E = ε \cdot E b

How to Evaluate Emissive Power of Blackbody?

Emissive Power of Blackbody evaluator uses Emissive Power of Blackbody = [Stefan-BoltZ]*(Temperature of Blackbody^4) to evaluate the Emissive Power of Blackbody, The Emissive Power of Blackbody formula is defined as the product of stefan boltzmann constant and temperature of blackbody raised to it's fourth power. Emissive Power of Blackbody is denoted by E_b symbol.

How to evaluate Emissive Power of Blackbody using this online evaluator? To use this online evaluator for Emissive Power of Blackbody, enter Temperature of Blackbody (T) and hit the calculate button.

FAQs on Emissive Power of Blackbody

What is the formula to find Emissive Power of Blackbody?

The formula of Emissive Power of Blackbody is expressed as Emissive Power of Blackbody = [Stefan-BoltZ]*(Temperature of Blackbody^4). Here is an example- 324.2963 = [Stefan-BoltZ]*(275^4).

How to calculate Emissive Power of Blackbody?

With Temperature of Blackbody (T) we can find Emissive Power of Blackbody using the formula - Emissive Power of Blackbody = [Stefan-BoltZ]*(Temperature of Blackbody^4). This formula also uses Stefan-Boltzmann Constant .

Can the Emissive Power of Blackbody be negative?

No, the Emissive Power of Blackbody, measured in Heat Flux Density cannot be negative.

Which unit is used to measure Emissive Power of Blackbody?

Emissive Power of Blackbody is usually measured using the Watt per Square Meter[W/m²] for Heat Flux Density. Kilowatt per Square Meter[W/m²], Watt per Square Centimeter[W/m²], Watt per Square Inch[W/m²] are the few other units in which Emissive Power of Blackbody can be measured.

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