1．下列表示可燃物燃烧热的热化学方程式是( )
A．CO(g)＋1/2 O2(g) === CO2(g) ΔH＝－283.0 kJ·mol－1
B．1/2CH4(g)＋O2(g) ===1/2CO2(g)＋H2O(l) ΔH＝－802.3 kJ·mol－1
C．2H2(g)＋O2(g) === 2H2O(g) ΔH＝－571.6 kJ·mol－1
D．C(s)＋1/2 O2(g) ===CO(g) ΔH＝－110.5 kJ·mol－1
2．若1/2H2(g)＋1/2Cl2(g) ===1HCl(g) ΔH＝－92.3 kJ/mol，则HCl(g) ===1/2H2(g)＋1/2Cl2(g)的ΔH为( )
A．＋184.6 kJ/mol B．－92.3 kJ/mol
C．－369.2 kJ/mol D．＋92.3 kJ/mol
