下列关于热化学反应的描述中正确的是
A.已知H+(aq)+OH-(aq)===H2O(l)ΔH=-57.3 kJ·mol-1,则H2SO4和Ba(OH)2反应的反应热ΔH=2×(-57.3) kJ·mol-1 |
B.燃料电池中将甲醇蒸气转化为氢气的热化学方程式是:CH3OH(g)+O2(g)===CO2(g)+2H2(g) ΔH=-192.9 kJ·mol-1,CH3OH(g)的燃烧热为192.9 kJ·mol-1 |
C.H2(g)的燃烧热是285.8 kJ·mol-1,则2H2O(g)===2H2(g)+O2(g) ΔH=+571.6 kJ·mol-1 |
D.葡萄糖的燃烧热是2800 kJ·mol-1,则C6H12O6(s)+3O2(g)===3CO2(g)+3H2O(l) ΔH=-1400 kJ·mol-1 |