- 問題詳情:N2H4是一種高效清潔的火箭燃料。0.25molN2H4(g)完全燃燒生成氮和氣態水時,放出133.5kJ熱量。則下列熱化學方程式中正確的是( )A.N2H4(g)+O2(g)=N2(g)+H2O(g);ΔH=+267kJ·mol-1B.N2H4(g)+O2(g)==N2(g)+2H2O(g);ΔH=-534kJ·mol-1C.N2H4(g)+O2(g)==N2(g)+2H2O(g);ΔH=+534kJ·mol-1D.N2H4(g)+O2(g)==N2(g)+2H2O(l);ΔH=-133.5...
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- 問題詳情:N2H4是一種高效清潔的火箭燃料,0.25molN2H4(g)完全燃燒生成氮氣和氣態水時,放出133.5kJ熱量.則下列熱化學方程式中正確的是()A. N2H4(g)+O2(g)=N2(g)+H2O(g)△H=+267kJ•mol﹣1B.N2H4(g)+O2(g)=N2(g)+2H2O(g)△H=﹣534kJ•mol﹣1C.N2H4(g)+O2(g)=N2(g)+2H2O(g)△H=+534kJ•mol﹣1D.N2H4(g)+O2(g)=N2(g)+2H2O(l)△H=﹣1...
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- 問題詳情:N2H4是一種高效清潔的火箭燃料。0.25molN2H4(g)完全燃燒生成氮氣和氣態水時,放出133.5kJ熱量。則下列熱化學方程式中正確的是( )A.N2H4(g)+O2(g)====N2(g)+H2O(g);ΔH=+267kJ?mol-1B.N2H4(g)+O2(g)====N2(g)+2H2O(g);ΔH=-534kJ?mol-1C.N2H4(g)+O2(g)====N2(g)+2H2O(g);ΔH=+534kJ?mol-1D.N2H4(g)+O2(g)====N2...
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