周末测试(二) 参考答案
1. B 2. D 3.D 4. D 5. D 6. B 7. A 8. A 9. B 10. C 11. A 12. AB 13. BC 14. C
15. CD 16. A 17. D 18. D 19. C 20. B
21.(1)CH4(g) + 2O2(g) == CO2(g) + 2H2O(l) ⊿H=-890kJ/mol
(2)C4H10(g) + 13/2O2(g) == 4CO2(g) + 5H2O(l) ⊿H= -16QkJ/mol
(3) C(s)+H2O(g)=CO(g)+H2(g) ΔH= +131.28 kJ/ mol