模拟雷雨条件下氮气和氧气反应的数字化实验探究
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摘要
设计了高压放电条件下N_2和O_2反应的实验装置,利用氧气传感器和压强传感器测量放电后O_2浓度的变化,停止放电后O_2浓度进一步减小,说明反应过程中生成了NO。向反应后的体系中注入紫色石蕊溶液,模拟雨水中NO_2与水反应,可以观察到红棕色变淡,紫色石蕊溶液变红,且氧气和压强传感器数值进一步减小,说明NO_2与水反应生成酸性物质,同时生成了NO。
This paper designed experiment device for the reaction of N_2 and O_2 under high voltage discharge.Used oxygen sensor and pressure sensor to measure oxygen concentration after discharge,and the decrease in oxygen concentration after stopping discharge indicated that NO was produced during the reaction.Then injected purple litmus solution into the reaction system,simulating the reaction of NO_2 and water in rain,reddish brown became lighter,purple litmus solution turned red,and the value of oxygen sensor and pressure sensor decreased further,which explained that acidic substance and NO were produced.
This paper designed experiment device for the reaction of N_2 and O_2 under high voltage discharge.Used oxygen sensor and pressure sensor to measure oxygen concentration after discharge,and the decrease in oxygen concentration after stopping discharge indicated that NO was produced during the reaction.Then injected purple litmus solution into the reaction system,simulating the reaction of NO_2 and water in rain,reddish brown became lighter,purple litmus solution turned red,and the value of oxygen sensor and pressure sensor decreased further,which explained that acidic substance and NO were produced.
引文
[1]王锦化,曹连东,杨小会,等.化学教育,2009,30(8):51-52
[2]朱式玉.教育与装备研究,1990(2):19-20
[3]孙奇文.化学教育,2016,37(5):71
[4]杨旗.空气电弧放电合成医用一氧化氮的等离子体化学动力学研究.武汉:华中科技大学硕士学位论文,2009:32-42
[5]房陈岩.空气高压放电紫外特性及多光谱成像技术研究.北京:中国科学院大学博士学位论文,2013:27-29
[6]王一男.射频高气压混合气体放电数值研究.大连:大连理工大学博士学位论文,2013:67-68
[2]朱式玉.教育与装备研究,1990(2):19-20
[3]孙奇文.化学教育,2016,37(5):71
[4]杨旗.空气电弧放电合成医用一氧化氮的等离子体化学动力学研究.武汉:华中科技大学硕士学位论文,2009:32-42
[5]房陈岩.空气高压放电紫外特性及多光谱成像技术研究.北京:中国科学院大学博士学位论文,2013:27-29
[6]王一男.射频高气压混合气体放电数值研究.大连:大连理工大学博士学位论文,2013:67-68