In: Chemistry
Calculate the enthalpy of combustion of methane gas at 1000K and 1atm.
The combustion reaction is:
Now, the enthalpy of the reaction is the difference between the enthalpy of the products and the enthalpy of the reactants.
Where
is the formation enthalpy of the product (reactant) "n" and
,
are the
stoichiometric coefficients.
From tables, we know:
So, at STP conditions:
Now, to calculate the enthaply at the temperature T :
From tables:
So: