題目列表(包括答案和解析)
A.CO(g)+O2(g)CO2(g);ΔH=-283 kJ·mol-1
B.CH4(g)+2O2(g)CO2(g)+2H2O(g);ΔH=-802.3 kJ·mol-1
C.2H2(g)+O2(g)2H2O(l);ΔH=-571.6 kJ·mol-1
D.H2(g)+Cl2(g)2HCl(g);ΔH=-184.6 kJ·mol-1
A.H2(g)+Cl2(g)====2HCl(g);ΔH=-184.6 kJ·mol-1
B.CH4(g)+2O2(g)====CO2(g)+2H2O(g);ΔH=-802.3 kJ·mol-1
C.2H2(g)+O2(g)====2H2O(g);ΔH=-571.6 kJ·mol-1
D.CO(g)+1/2O2(g)====CO2(g);ΔH=-283 kJ·mol-1
下列熱化學(xué)方程式中ΔH的絕對值能表示可燃物的燃燒熱的是
A.H2(g) + 1/2O2(g) = H2O (g) ΔH=-241.8 kJ/mol
B.CH4 (g) + 2O2(g) = CO2(g) +2H2O(g) ΔH=-802.3kJ/mol
C.2H2(g) + O2(g) = 2H2O(l) ΔH=-571.6 kJ/mol
D.CO(g) + 1/2O2(g) = CO2(g) ΔH=-283kJ/mol
下列熱化學(xué)方程式中△H的絕對值能表示可燃物的燃燒熱的是
A.H2(g)+Cl2(g)=2HCl(g);△H=-184.6kJ/mol
B.CH4(g)+2O2(g)=CO2(g)+2H2O(g);△H=-802.3kJ/mol
C.2H2(g)+O2(g)=2H2O(l);△H=-571.6kJ/mol
D.CO(g)+1/2O2(g)=CO2(g);△H=-283kJ/mol
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