下列热化学方程式正确的是
A.S(s)+O2(g)= SO2(g);ΔH= -269.8kJ/mol |
B.NaOH (aq)+HCl(aq)=NaCl(aq)+H2O(l);ΔH=+57.3kJ/mol |
C.表示乙醇的燃烧热:C2H5OH(l)+3O2(g)=2CO2(g)+ 3H2O(g);ΔH=-1367.0 kJ/mol |
D.2NO2 = O2+2NO;ΔH= +116.2kJ/mol |
下列热化学方程式正确的是
A.S(s)+O2(g)= SO2(g);ΔH= -269.8kJ/mol |
B.NaOH (aq)+HCl(aq)=NaCl(aq)+H2O(l);ΔH=+57.3kJ/mol |
C.表示乙醇的燃烧热:C2H5OH(l)+3O2(g)=2CO2(g)+ 3H2O(g);ΔH=-1367.0 kJ/mol |
D.2NO2 = O2+2NO;ΔH= +116.2kJ/mol |