A cryogenic storage container holds liquid helium, which boils at 4.2 k. Suppose a student painted the outer shell of the container black, turning it into a pseudo-blackbodv, and that the shell has an effective area of 0.50 m2 and is at 3.0 . 102 K.
a)Determine the rate of heat loss due to radiation.
b)What is the rate at which the volume of the liquid helium in the container decreases as a result of boiling off? The latent heat of vaporization of liquid helium is 20.9 kJ/kg. The density of liquid helium is 0.125 kg/L.
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