Which of the following methods can keep ice for a longer time in a metal container?
Use thivker layers of metal as the walls of the container.>>點解5岩,呢個5係可以減少heat loss by conduction咩
f.3 phy CONDUCTION題一問
2007-06-17 10:19 pm
回答 (1)
2007-06-18 12:02 am
✔ 最佳答案
唔係最好because metal is a good heat conductor transferred heat very fast, it can keep the ice longer a bit,but not very long! 應該在metal container出面加一層cotton wool to prevent heat loss！the best way to prevent heat, because cotton wool is a good heat insulator prevent heat transfered by conduction.
參考: By my physics knowledge
收錄日期: 2021-04-23 19:23:59
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