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lbscxx

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[求助] 燃烧热的计算

85℃的醋酸环戊酯(l)完全燃烧生成CO2(g)和H2O(l)的燃烧热怎么计算?
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jolin-one

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2楼2012-12-01 16:43:38
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whzwcm

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3楼2012-12-01 16:50:13
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mengxin856

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fds329: 金币+2, 感谢应助。辛苦了O(∩_∩)O 2012-12-07 13:21:03
燃烧热就是该反应在85度的反应焓变,ΔrHm(85)=ΔrHm(25)+ΔCpΔT(基尔霍夫定律),而ΔrHm(25)等于25度时醋酸环戊酯标准生成焓ΔfHm的相反数,可查表得到。各物质的定压摩尔热容也可查表得到,待人上次即可计算得到
4楼2012-12-02 00:09:35
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