1.Which type of Bunsen Flame should used if the burner is not used for a short time?Why?
2.Which type of Bunsen flame should used for boiling water for 2 minutes? Why?
請盡量用英文回答～
IS bunsen burner既問題
2008-11-01 10:52 pm
回答 (1)
2008-11-01 11:55 pm
✔ 最佳答案
1.A yellow flame should be used.
This is because yellow flame is luminous, and thus easily to observe. Thus, this can avoid accidental skin burn by the burner.
2.
A blue flame should be used.
This is because blue flame has a higher temperature then yellow flame, and thus the water boils faster.
=
收錄日期: 2021-04-23 23:05:10
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081101000051KK01116