1. You carelessly leave a carton of milk outside of the refrigerator on the counter for...

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1. You carelessly leave a carton of milk outside of the refrigerator on the counter for 10 minutes. The temperature of the milk is the refrigerator is 3C, and the room on a hot day is at a temperature of 30C. The carton has a total surface area of 0.10 m, and the heat transfer coefficient on its surface is 12 W/m- K. The emissivity of the carton is 0.9. Assume the surface temperature of the milk carton stays at 3C over the entire 10 minutes (this will give the highest possible estimate of heat gain). (a) Calculate the total amount of heat transfer from the room to the carton. (b) Determine the cost to remove this heat from the milk once back in the refrigerator if the COP of the refrigerator is 2.5 and the electricity cost is $0.10/kWh. 1. You carelessly leave a carton of milk outside of the refrigerator on the counter for 10 minutes. The temperature of the milk is the refrigerator is 3C, and the room on a hot day is at a temperature of 30C. The carton has a total surface area of 0.10 m, and the heat transfer coefficient on its surface is 12 W/m- K. The emissivity of the carton is 0.9. Assume the surface temperature of the milk carton stays at 3C over the entire 10 minutes (this will give the highest possible estimate of heat gain). (a) Calculate the total amount of heat transfer from the room to the carton. (b) Determine the cost to remove this heat from the milk once back in the refrigerator if the COP of the refrigerator is 2.5 and the electricity cost is $0.10/kWh.