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冰的比热容和水的比热容各是多少

更新时间: 2020-07-11 00:00:00     

水的比热容是:1千克的水温度升高1摄氏度需要吸收4200焦的热量;冰的比热容是:1千克的冰温度升高1摄氏度需要吸收2100焦的热量。

比热容用符号c表示,又称比热容量,简称比热,是指1克物质每升高1摄氏度时,所需的热能。铜、铝、低碳钢和不锈钢的比热容依次递减,因此,在相同热源的作用下,不锈钢的温升较高,温度场范围大。

关键词: 比热 多少

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