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★ ★ ★ ★ ★ ★ amount(金币+1): 谢谢参与 amount: 金币+1 2012-04-19 10:56:25 amount: 金币+2 2012-04-19 10:59:00 见证2011: , 感谢参与啊! 2012-04-19 14:40:46 fds329: 金币+2, 感谢应助。辛苦了O(∩_∩)O 2012-04-19 23:27:40
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还特地看了下维基百科Hydrogen,其中combustion里讲“……Hydrogen gas forms explosive mixtures with air if it is 4–74% concentrated and with chlorine if it is 5–95% concentrated. The mixtures spontaneously explode by spark, heat or sunlight. The hydrogen autoignition temperature, the temperature of spontaneous ignition in air, is 500 °C (932 °F).[13]……”但是也看到有人说水的存在很关键,完全没有水(分压低于某值)会在高温下也不反应。。。这,我无法解释了。感觉和混合比例(不是说达到可以爆炸的比例)和引燃条件很关键 |
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