A 2-mm-diameter cylindrical metal rod with emissivity of 0.5 is submerged horizontally in water under atmospheric pressure.

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A 2-mm-diameter cylindrical metal rod with emissivity of 0.5 is submerged horizontally in water under atmospheric pressure. When electric current is passed through the metal rod, the surface temperature reaches 500°C. Determine the power dissipation per unit length of the metal rod.P = 1 atm wwxw 100C Metal rod, T, = 500C ( = 0.5) - Vapor film

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