1SQ(CHEM) - Ans.fyi 參考答案

1SQ(CHEM)

2009-01-31 7:59 am

If the air hole of the Bunsen burner is open completely when
there is insufficient supply of town gas, a special phenomenon
occurs.
a.what would you observe?
b.give the name of the phenomenon.
c.how would you handle the above phenomenon?

答完答案請用中文翻譯一下

回答 (1)

老爺子

2009-01-31 8:29 am

✔ 最佳答案

a.
The Bunsen flame becomes smaller, then burns in the burner tube, and finally goes out rapidly.
本生焰縮小，然後在燈管中燃燒，最後迅速熄滅。

b.
The phenomenon is named as "striking back".
這現象稱為「縮火」（或「回擊」）。

c.
Turn off the gas tap immediately. (Actually, you should adjust the gas tap to supply sufficient gas in order to avoid striking back.)
立刻關掉煤氣掣。（事實上，你應該調校煤氣掣，提供足夠煤氣，避免縮火。）
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