已知在25℃,101kPa下,1g液态C
8H
18(辛烷)燃烧生成二氧化碳和液态水时放出48.40kJ热量。表示上述反应的热化学方程式正确的是( )
- A、C8H18(1)+22.5O2(g)=8CO2(g)+9H2O(g)ΔH=-48.40kJ·mol-1
- B、C8H18(1)+22.5O2(g)=8CO2(g)+9H2O(1)ΔH=-5518kJ·mol-1
- C、C8H18(1)+22.5O2(g)=8CO2(g)+9H2O(1)ΔH=-5518kJ
- D、C8H18(1)+22.5O2(g)=8CO2(g)+9H2O(g)ΔH=-5518kJ·mol-1