# Problem: The methane molecule, CH4, has the geometry shown in following figure. Imagine a hypothetical process in which the methane molecule is "expanded," by simultaneously extending all four C–H bonds to infinity. We then have the process CH4(g) → C(g) + 4 H(g). Calculate the enthalpy change in process in which the methane molecule is expanded, by simultaneously extending all four C–H bonds to infinity.

###### FREE Expert Solution

We are asked to calculate the enthalpy change in process in which the methane molecule is expanded, by simultaneously extending all four C–H bonds to infinity.

Note that we need to multiply each ΔH˚ by the stoichiometric coefficient since ΔH˚ is in kJ/mol.

Balanced reaction : CH4(g) → C(g) + 4 H(g). ###### Problem Details
The methane molecule, CH4, has the geometry shown in following figure. Imagine a hypothetical process in which the methane molecule is "expanded," by simultaneously extending all four C–H bonds to infinity. We then have the process CH4(g) → C(g) + 4 H(g). Calculate the enthalpy change in process in which the methane molecule is expanded, by simultaneously extending all four C–H bonds to infinity. 