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冰上放物质为什么会使冰融化
A wire with weights attached to each end is placed across a block of ice.The wire may pass through the ice without cutting it.Investigate the phenomenon.
人气:346 ℃ 时间:2020-07-04 23:31:14
解答
若物质温度比冰高,此时物质与冰就会发生热传递.热传递指:不同温度的物质,温度高的自动向温度低的传递热量.
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