C3H8gCH4g的知识精选

用化学知识填空:(1)**通过脱*反应可得*烯。已知:①C3H8(g)===CH4(g)+C2H2(g)+H2...
问题详情:用化学知识填空:(1)**通过脱*反应可得*烯。已知:①C3H8(g)===CH4(g)+C2H2(g)+H2(g) ΔH1=+156.6kJ·mol-1②C3H6(g)===CH4(g)+C2H2(g)  ΔH2=+32.4kJ·mol-1则相同条件下,反应C3H8(g)===C3H6(g)+H2(g)的ΔH=__________kJ...
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