- 問題詳情:已知下列熱化學方程式:①H2(g)+1/2O2(g)===H2O(g)ΔH1=akJ·mol-1②2H2(g)+O2(g)===2H2O(g)ΔH2=bkJ·mol-1③H2(g)+1/2O2(g)===H2O(l)ΔH3=ckJ·mol-1④2H2(g)+O2(g)===2H2O(l)ΔH4=dkJ·mol-1下列關係式中正確的是()A.a<c<0 B.b>d>0C.2a=b...
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- 問題詳情:已知:(1)H2(g)+1/2O2(g)===H2O(g)ΔH1=akJ/mol(2)2H2(g)+O2(g)===2H2O(g)ΔH2=bkJ/mol(3)H2(g)+1/2O2(g)===H2O(l)ΔH3=ckJ/mol(4)2H2(g)+O2(g)===2H2O(l)ΔH4=dkJ/mol下列關係式中正確的是 ...
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- 問題詳情:今有如下3個熱化學方程式:H2(g)+12O2(g)===H2O(g)ΔH1=-akJ•mol-1(1)H2(g)+12O2(g)===H2O(l)ΔH2=-bkJ•mol-1(2)2H2(g)+O2(g)===2H2O(l)ΔH3=-ckJ•mol-1(3)關於它們在下列表述中原因和結論都正確的是()選項 原因 結論A H2的燃燒是放熱反應 a、b、c均大於零B 方程式(1)...
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