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A-level 化學/OCR (Salters)/油鍋火災

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油鍋火災如何爆炸

[編輯 | 編輯原始碼]
  • Oil gets so hot that it catches fire all by itself.
    油變得太熱，會自行著火。
  • Water is poured into the burning chip pan.
    將水倒入燃燒的油鍋中。
  • Water is denser than oil, so it sinks to the bottom of the chip pan (shown in red). As the water touches the bottom, it is heated above its boiling point and instantly vaporizes.
    水的密度比油大，因此會沉入油鍋底部（以紅色顯示）。當水接觸底部時，它會被加熱到沸點以上，並立即汽化。
  • The water vapour expands radpidly, ejecting the burning molten oil out of the chip pan and into the air where its surface area increases greatly and combustion proceeds much faster.
    水蒸氣迅速膨脹，將燃燒的熔融油從油鍋中噴射到空氣中，其表面積大大增加，燃燒速度也大大加快。
  • Oil is heated strongly
    油被強烈加熱
  • After some time, it gets hot enough to catch fire
    一段時間後，它會變得足夠熱以著火
  • Pouring a very small amount of water into the fire ejects a plume of burning oil
    倒入少量水會噴射出一股燃燒的油
  • With all the oil burned, there is no more fuel to supply the fire
    隨著所有油的燃燒，不再有燃料供應火焰
檢索自 "https://wikibook.tw/w/index.php?title=A-level_Chemistry/OCR_(Salters)/Chip-pan_fires&oldid=3760804"
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