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一、实验目的人教版《化学2》“甲烷”一节中,对于甲烷的燃烧与爆炸有这样的描述:“空气中的甲烷含量在5%~15.4%(体积)范围时,遇火花将发生爆炸……在进行甲烷燃烧实验时,必须先检验其纯度。”基于此背景,笔者特设计了一套集甲烷燃烧与爆炸于一体的实验装置。二、实验仪器及试剂中号橡胶球胆一只,止水阀一个,塑料导管一个,茶叶桶一个(上下各开一个小孔),打火机一只,甲烷气体。
First, the purpose of the experiment PEP “Chemistry 2” “Methane ” section, for the combustion and explosion of methane has this description: “When the methane content in the air in the range of 5% to 15.4% (volume) In the event of a spark explosion ... ... in the methane combustion experiment, you must first test its purity. ”" Based on this background, I designed a special set of methane combustion and explosion in one experimental device. Second, the experimental apparatus and reagents A medium rubber bladder, a water valve, a plastic conduit, a barrel of tea (up and down each opening a small hole), a lighter, methane gas.