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1千卡等于多少kj

更新时间: 2020-11-05 00:00:00     

1千卡等于4.184KJ,因为1千卡(KCAL)=4.184千焦耳(KJ),所以1千卡等于于4.184KJ。

卡是卡路里简称(缩写为cal),由英文Calorie音译而来,其定义为将1克水在1大气压下提升1℃所需要的热量。卡路里(calorie)是能量单位,被广泛使用在营养计量和健身手册上。国际标准的能量单位是焦耳(joule),1卡=4.1868焦。

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