阅读理解提问the freezing point of one liter of antifreeze and one liter of water mixed together is ()零下24°,零下22°,零下20°,零下18°应该怎么选呢?文章只给出了防冻剂的结冰点和水的结冰点,能得出他们分别
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/15 08:02:37
阅读理解提问the freezing point of one liter of antifreeze and one liter of water mixed together is ()零下24°,零下22°,零下20°,零下18°应该怎么选呢?文章只给出了防冻剂的结冰点和水的结冰点,能得出他们分别
阅读理解提问the freezing point of one liter of antifreeze and one liter of water mixed together is ()零下24°,零下22°,零下20°,零下18°应该怎么选呢?文章只给出了防冻剂的结冰点和水的结冰点,能得出他们分别一公斤混合起来之后的结冰点吗?且文章只给出5部分的水4部分的防冻剂,部分和公斤有单位可以换算吗?求详细讲解Water freezes at 0℃;the usual kind of antifreeze will not freeze until the temperature is -40℃.A mixture(混合物) of five parts of water and four parts of antifreeze will prevent freezing at-18℃;four parts of water and five parts of antifreeze reduce this to -22℃.
阅读理解提问the freezing point of one liter of antifreeze and one liter of water mixed together is ()零下24°,零下22°,零下20°,零下18°应该怎么选呢?文章只给出了防冻剂的结冰点和水的结冰点,能得出他们分别
零下22°
理由是:
最后一句说,four parts of water and five parts of antifreeze reduce this to -22℃.
两种东西的量相等时,即4:4时,结冰点是-22°C.
所以1升水和1升防冻剂量相等,也应该是零下22°结冰.