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Engineering, 21.08.2019 00:30 hollisjune3047

Liquid oxygen is stored in a thin-walled, spherical container 0.8 m in diameter, which is enclosed within a second thin-walled, spherical container 1.2 m in diameter. the opaque, diffuse, gray container surfaces have an emissivity of 0.05 and are separated by an evacuated space. if the outer surface is at 275 k and the inner surface is at 95 k, what is the mass rate of oxygen lost due to evaporation, in kg/s? (the latent heat of vaporization of oxygen is 2.13 x 105 j/kg.)

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