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某中学锅炉房每天要将三吨水从二十度加热到一百度问这些水需吸收热量为多少

2025-04-06 21:04:03

推荐回答（2个）

回答1：

3t=3000kg Q=cm△t=4*10^3焦耳每千克摄氏度 *3000kg*80℃=9.6*10^11J

回答2：

粗略计算，不包括损耗和换热效率，2400大卡；如果精细计算，你要查一下水的物理性质（指定温度下的热焓值）

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