下列依据热化学方程式得出的结论正确的是
A.已知2H2(g) + O2(g) = 2H2O(g)△H =–483.6 kJ·mol–1,则氢气的燃烧热为241.8kJ·mol–1 |
B.已知C(石墨,s) = C(金刚石,s);△H>0,则金刚石比石墨稳定 |
C.已知NaOH(aq) + HCl(aq) =" NaCl(aq)" + H2O(l);△H =–57.4 kJ·mol–1,则含20.0g NaOH的稀溶液与稀盐酸完全中和,放出28.7kJ的热量 |
D.已知:2C(s) + 2O2(g) = 2CO2(g);△H1,2C(s) + O2(g) = 2CO(g);△H2则△H1>△H2 |