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    Radiative Heat Transfer: Wien's Displacement Law

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    At what wavelength do the planetary bodies and Sun have their maximum emissive power? What range of the spectrum does this fall in? As the surface temperature increases, does the wavelength increase or decrease? What is the maximum temperature required for the maximum emissive power to enter the microwave range? What is the minimum temperature required for the maximum emissive power to be in the x-ray range? Assume the following for the average surface temperatures of the bodies:

    Sun: 5777K
    Mercury: 440K
    Venus: 740K
    Earth: 290K
    Mars: 210K
    Jupiter: 165K
    Saturn: 135K
    Uranus: 80K
    Neptune: 75K

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    https://brainmass.com/physics/em-waves/radiative-heat-transfer-wiens-displacement-law-507334

    Solution Preview

    At what wavelength do the planetary bodies and Sun have their maximum emissive power? What range of the spectrum does this fall in? As the surface temperature increases, does the wavelength increase or decrease? What is the maximum temperature required for the maximum emissive power to enter the microwave range? What is the minimum temperature required for the maximum emissive power to be in the x-ray range? Assume the following for the average surface temperatures of the bodies:
    Sun: 5777K
    Mercury: 440K
    Venus: 740K
    Earth: 290K
    Mars: 210K
    Jupiter: 165K
    Saturn: ...

    Solution Summary

    This solution gives the steps for applying Wien's displacement law in radiation heat transfer to calculate the maximum emissive power of a planetary body or the sun. The location of the results in the electromagnetic wave spectrum are considered. Required temperatures to produce emissive power maximums in the x-ray range and microwave range are calculated.

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