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火的溫度是多少(炭火的溫度是多少)

  • 生活
  • 2023-04-26 12:36

溫度最高的火焰在色譜上是紫色,在可見光譜上是白色。除了火焰溫度之外,燃料和雜質的類型也影響火焰的顏色。

火產生的熱量取決于燃燒的燃料類型和燃料與氧氣反應時發生的化學反應。燃料本身在燃燒過程中變成氣體,分解成更小的分子、離子、原子和自由基。燃燒產生的一些氣體包括:

一氧化碳、氰化氫、二氧化碳、氯化氫、二氧化硫等。

一旦氣體形成,燃燒就發生了,各種分子與氧氣反應產生熱和光,稱為火。火的普通色譜跨越了從相對冷到非常熱的范圍。

紅色是相對較冷的火,紫色是非常熱的火。肉眼來看,第一個可見的火焰通常是暗紅色的,而最熱的火焰是白色的。紅色火焰是500到800攝氏度,而白色火焰是1600攝氏度或更高。值得注意的是,顏色并不總是溫度的決定因素,因為某些化學物質可能會使火焰得更熱。

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