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甲烷在隔绝空气的条件下加热到1000-1500℃能够分解成C和H_2。乙烯、乙炔能不能分解呢?学生常提出这个问题。课本上没有安排烃的加热分解实验,为加强这类反应的直观教学,我们补充设计了乙炔分解反应的演示实验。操作简便,现象明显。反应原理:
Methane can be decomposed into C and H 2 when heated to 1000-1500°C in air-tight conditions. Can ethylene and acetylene be broken down? Students often ask this question. There is no heating decomposition experiment for hydrocarbons in the textbooks. In order to enhance the intuitive teaching of this type of reaction, we have additionally designed a demonstration experiment of the acetylene decomposition reaction. The operation is simple and the phenomenon is obvious. Reaction principle: