下列热化学方程式中△H的绝对值表示可燃物燃烧热的是( )
A.CO(g)+ O2(g) ===CO2(g)△H=-283.0 kJ•mol-1 |
B.CH4(g)+ 2O2(g) ===CO2(g)+2H2O(g)△H=-802.3 kJ•mol-1 |
C.2H2(g)+ O2(g) ===2H2O(l)△H=-571.6kJ•mol-1 |
D.C(s)+O2(g) ===CO(g)△H=-110.5kJ•mol-1 |
下列热化学方程式中△H的绝对值表示可燃物燃烧热的是( )
A.CO(g)+ O2(g) ===CO2(g)△H=-283.0 kJ•mol-1 |
B.CH4(g)+ 2O2(g) ===CO2(g)+2H2O(g)△H=-802.3 kJ•mol-1 |
C.2H2(g)+ O2(g) ===2H2O(l)△H=-571.6kJ•mol-1 |
D.C(s)+O2(g) ===CO(g)△H=-110.5kJ•mol-1 |