阿Q吧 > 2.00gC2H2完全燃烧生成液态水和CH2，放出99.6KJ热量，3.00molC2H2，完全燃

2.00gC2H2完全燃烧生成液态水和CH2，放出99.6KJ热量，3.00molC2H2，完全燃

2025-03-16 06:10:03
推荐回答（1个）
回答1：

2gC2H4的物质的量为：2/28=1/14mol
1/14mol的C2H4完全燃烧可以放出99.6，3molC2H4放出的热量为X
1/14--------------------99.6
3 x
x=4183.2KJ

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