Which equation shows the enthalpy change corresponding to the average bond energy for the C-H bond in methane?
- A$\tfrac{1}{4}\,\text{C}(g) + \text{H}(g) \rightarrow \tfrac{1}{4}\,\text{CH}_4(g)$
- B$\tfrac{1}{4}\,\text{CH}_4(g) \rightarrow \tfrac{1}{4}\,\text{C}(g) + \text{H}(g)$
- C$\text{CH}_4(g) \rightarrow \text{C}(g) + 4\text{H}(g)$
- D$\text{CH}_4(g) \rightarrow \text{CH}_3(g) + \text{H}(g)$