1.
(2020高二下·合肥期中)
已知:①2H2(g)+O2(g)=2H2O(l) ΔH=-571.6 kJ·mol-1
②2CH3OH(l)+3O2(g)=2CO2(g)+4H2O(l) ΔH=-1452 kJ·mol-1
③H+(aq)+OH-(aq)=H2O(l) ΔH=-57.3 kJ·mol-1
下列说法正确的是( )
A . H2(g)的燃烧热为142.9 kJ·mol-1
B . 同质量的H2(g)和CH3OH(l)完全燃烧,H2(g)放出的热量多
C . 1/2H2SO4(aq)+1/2Ba(OH)2(aq)=1/2BaSO4(s)+H2O(l) ΔH=-57.3 kJ·mol-1
D . 3H2(g)+CO2(g)=CH3OH(l)+H2O(l) ΔH=+131.4 kJ·mol-1