3. The photograph shows a recyclable box designed for transporting cold food. layered cardboard lid >layered...
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3. The photograph shows a recyclable box designed for transporting cold food. layered cardboard lid >layered cardboard walls The box has these design features thick walls made from several layers of cardboard with air trapped between the layers a thick lid made from layers of cardboard .Cold food and ice packs are placed in the box. (a) Give a reason why there is a net transfer of energy from the outside of the box to the inside of the box during transportation in a hot country. (1) (b) Explain how the box is designed to reduce energy transfer by convection. (2) (c) A student suggests that painting the inner surfaces of the box a different colour would help to reduce the rate of energy transfer to the cold food. Explain which colour the inner surfaces of the box should be painted. (2) 3. The photograph shows a recyclable box designed for transporting cold food. layered cardboard lid >layered cardboard walls The box has these design features thick walls made from several layers of cardboard with air trapped between the layers a thick lid made from layers of cardboard .Cold food and ice packs are placed in the box. (a) Give a reason why there is a net transfer of energy from the outside of the box to the inside of the box during transportation in a hot country. (1) (b) Explain how the box is designed to reduce energy transfer by convection. (2) (c) A student suggests that painting the inner surfaces of the box a different colour would help to reduce the rate of energy transfer to the cold food. Explain which colour the inner surfaces of the box should be painted. (2)
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Related Book For
Financial Reporting and Analysis
ISBN: 978-0078025679
6th edition
Authors: Flawrence Revsine, Daniel Collins, Bruce, Mittelstaedt, Leon
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