Question

What is the thermochemical equation for the combustion of methane. Methane formula: CH4 (g) and the deltaH comb -891 (kJ/mol)

Answer 1

Answer : A thermochemical equation gives a balanced stoichiometric chemical equation which mainly includes the enthalpy change during the reaction process, ΔH.

Combustion reactions are those reactions which occurs when a hydrocarbon molecule reacts with oxygen to give products as carbon dioxide and water. In other words, combustion reaction involves a reaction between any combustible material and an oxidizer to form an oxidized product.

For combustion of methane, methane reacts with the oxygen and forms carbon dioxide and water as the products.

The thermochemical equation will be as

$CH_{4} + 2O_{2}$ → $CO_{2} + 2H_{2}O$. and ΔH = -891 KJ/mol

Answer 2

The thermochemical reaction for combustion of methane is the balanced chemical equation for the combustion reaction with the enthalpy change and states of the reactants included.
Combustion is when an organic compound reacts with O₂ to yield CO₂ and H₂O.
thermochemical reaction for combustion of methane is as follows;
CH₄(g) + 2O₂(g) --> CO₂(g) + 2H₂O(g)             ΔH = -891 kJ/mol