12．CH₄(g)＋CO₂(g)===2CO(g)＋2H₂(g)

ΔH＝＋247.4 kJ·mol^－1

11．3H₂(g)＋3CO(g)===CH₃OCH₃(g)＋CO₂(g)

ΔH＝－246.4 kJ·mol^－1

10．C(s)＋CO₂(g)2CO(g)　ΔH＝＋172.5 kJ·mol^－1

9．C(s)＋H₂O(g)CO(g)＋H₂(g)

ΔH＝＋131.3 kJ·mol^－1

8．CH₄(g)＋2H₂O(g)===CO₂(g)＋4H₂(g)

ΔH＝＋165.0 kJ·mol^－1

7．CH₄(g)＋H₂O(g)===CO(g)＋3H₂(g)

ΔH＝＋206.2 kJ·mol^－1

6．CH₄(g)＋O₂(g)===CO₂(g)＋2H₂(g)

ΔH＝－322.0 kJ·mol^－1

5．CH₄(g)＋2O₂(g)===CO₂(g)＋2H₂O(g)

ΔH＝－802.6 kJ·mol^－1

4．2CH₃OH(g)===CH₃OCH₃(g)＋H₂O(g)

ΔH＝－24.5 kJ·mol^－1

3．CO(g)＋H₂O(g)===CO₂(g)＋H₂(g)

ΔH＝－41.1 kJ·mol^－1