Large spherical tanks are often used to store low temperature gases at chemical plants. an aisi 304 stainless steel tank with an inner diameter of 40.0 meters is completely filled with medical-grade oxygen at -16.0 °c with a convective heat transfer coefficient of 115 w/m -k. the wall thickness of the tank is 6.50 cm, and the outside of the sphere is exposed to air at 25.0°c, with hair = 67.0 w/mʻ-k. to find properties of the steel, use 200 k. a. what are the values of the thermal resistance terms going between bulk air and bulk oxygen in the tank (k/w)? b. what is the total heat transfer rate, q, from the air to the liquid nitrogen? c. a thick layer of insulation is added to the outside of the spherical tank. the insulation has k = 0.079 w/m-k and is 4.50 cm thick. what is the thermal resistance term for the insulation? do any of the other the thermal resistance terms because of the addition of the insulation? if so, calculate. d. calculate the new heat transfer rate with insulation to determine if the insulation reduce heat transfer.