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一度电多少大卡

更新时间: 2020-10-23 00:00:00     

一度电=一千瓦时=1000瓦*3600秒=3.6*10^6J,1千卡=4.18千焦,也就是说一个一公斤左右的蜂窝煤能产生大概33000焦的能量,而一度电能产生大概3600000焦的能量,一度电也被称为一千瓦/时,完全转换为热量为1000×3600=3600000焦耳。

在理想状况下,完全不计损耗的话一度电能用发热管可产生3600000焦耳的热量,同样,3600000焦耳的能量可转换为一度电。1卡=4.2焦耳。1KWH=860Kcal,KWH是电量,Kcal就是俗称的大卡。

关键词: 一度 多少 大卡

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