# What is the energy change for the reaction of methane with chlorine?

May 25, 2018

Just to retire this question....the energy change is unknown without data...

#### Explanation:

$C {H}_{4} \left(g\right) + C {l}_{2} \left(g\right) \rightarrow {H}_{3} C - C l \left(g\right) + H - C l \left(g\right)$
Now all enthalpy change is determined on the balance between the energies of BONDS FORMED, i.e. $C - C l$ and $H - C l$ bonds, and bonds broken, i.e. $C l - C l$, and $C - H$ bonds....
..as always...$\Delta {H}_{\text{rxn"^@-=Sigma_"bonds formed"-Sigma_"bonds broken}}$