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1大卡热量等于多少能量
更新时间: 2020-11-05 00:00:00  

1大卡热量等于4186.75焦耳的热量,1卡路里为1克水在1大气压下提升1℃所需要的热量。

热量是指在热力系统与外界之间依靠温差传递的能量。热量是一种过程量,所以热量只能说吸收或放出,不可以说含有或具有,而该传递过程称为热交换或热传递。

关键词: 大卡 热量 等于 多少 能量

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