How much energy is given off if 1 mol of CH4 is burned?
Here is a table that lists heat of combustion for several materials.
https://en.wikipedia.org/wiki/Heat_of_combustion#Heat_of_combustion_tables
To calculate the energy given off when 1 mol of CH4 (methane) is burned, we need to use the concept of molar enthalpy of combustion.
The molar enthalpy of combustion (ΔHc) represents the heat released when 1 mole of a substance is completely burned in excess oxygen gas (O2), at standard conditions. For methane (CH4), the balanced chemical equation for combustion is:
CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
The ΔHc value for methane is approximately -890 kilojoules per mole (-890 kJ/mol).
Therefore, when 1 mol of CH4 is burned, 890 kJ of energy is released.
Note that the value might vary slightly depending on the source and the conditions specified, but around -890 kJ/mol is a common value used for methane combustion.