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28 August, 02:43

Calculate the surface temperature of a black surface, 1.6 m^2 in area if the rate of heat transfer is 632 kW. The Stefan-Boltzmann constant is σ = 5.67 x 10^-8 W/m^2 K^4 a) 1734 °C b) 273 °C c) 1625 K d) 1640 K e) 1682 K

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  1. 28 August, 04:03
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    From Stefan's formula

    P=A&T^4

    T = (P/A&) ^1/4

    T = (632000W/1.6m^2 x 5.67E-8W/m^2K^4) ^1/4

    T=
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