Liquid oxygen, which has a boiling point of 90 k and a latent heat of vaporization of 214 kj/kg, is stored in a spherical container whose outer surface is of 500-mm diameter and at a temperature of −10°c. the container is housed in a laboratory whose air and walls are at 25°c. (a) if the surface emissivity is 0.20 and the heat transfer coefficient associated with free convection at the outer surface of the container is 10 w/m2 ⋅ k, what is the rate, in kg/s, at which oxygen vapor must be vented from the system? (b) moisture in the ambient air will