An ice chest whose outer dimensions are 30 cm x 40 cm x 40 cm is...

Transcribed Image Text:

An ice chest whose outer dimensions are 30 cm x 40 cm x 40 cm is made of 3-cm-thick Styrofoam (k = 0.033 W/m-°C). Initially, the chest is filled with 28 kg of ice at 0°C, and the inner surface temperature of the ice chest can be taken to be 0°C at all times. The heat of fusion of ice at 0°C is 333.7 kJ/kg, and the surrounding ambient air is at 25°C. Disregarding any heat transfer from the 40 cm x 40 m base of the ice chest, determine how long it will take for the ice in the chest to melt completely if the outer surfaces of the ice chest are at 8°C. Answer: 22.9 days D = 25°C Ice chest 0°C D O ỨC Styrofoam --3 cm An ice chest whose outer dimensions are 30 cm x 40 cm x 40 cm is made of 3-cm-thick Styrofoam (k = 0.033 W/m-°C). Initially, the chest is filled with 28 kg of ice at 0°C, and the inner surface temperature of the ice chest can be taken to be 0°C at all times. The heat of fusion of ice at 0°C is 333.7 kJ/kg, and the surrounding ambient air is at 25°C. Disregarding any heat transfer from the 40 cm x 40 m base of the ice chest, determine how long it will take for the ice in the chest to melt completely if the outer surfaces of the ice chest are at 8°C. Answer: 22.9 days D = 25°C Ice chest 0°C D O ỨC Styrofoam --3 cm

Answer rating: 100% (QA)

To determine the time it takes for the ice in the chest to melt completely we need to calculate the ... View the full answer