Respuesta :
The standard enthalpy of production of acetylene is 227.0 kJ/mol when acetylene combustion is taken into account.
The enthalpy change that takes place when 1 mole of a substance is created from its component elements in their standard states is known as the standard enthalpy of formation. A pure element has a standard enthalpy of production of 0 in its normal state.
Let's consider the following thermochemical equation.
C₂H₂(g) + 5/2 O₂(g) → 2 CO₂(g) + H₂O(g) ΔH°rxn = −1255.8 kJ
We may determine the standard enthalpy of the reaction (H°rxn) using the following expression given the standard enthalpies of formation (H°f) and assuming that the enthalpy of formation of simple compounds in the standard state is zero.
ΔH°[tex]_{rxn}[/tex]= ∑ ΔH°[tex]_{f}[/tex](p)×[tex]n_{p}[/tex] ₋∑ ΔH°[tex]_{f}[/tex](r)×[tex]n_{r}[/tex]
where,
n: moles
r: reactants
p: products
This equation will be used to determine the standard enthalpy of acetylene production.
ΔH°[tex]_{rxn}[/tex]= ∑ ΔH°[tex]_{f}[/tex](p)×[tex]n_{p}[/tex] ₋∑ ΔH°[tex]_{f}[/tex](r)×[tex]n_{r}[/tex]
ΔH°[tex]_{f}[/tex](C₂H₂)(g) × 1mol = ΔH°[tex]_{f}[/tex](CO₂(g)) × 2mol + ΔH°[tex]_{f}[/tex](H₂O(g)) - ΔH°[tex]_{rxn}[/tex] - ΔH°[tex]_{f}[/tex]( O₂ (g)) ×5/2 mol
ΔH°[tex]_{f}[/tex](C₂H₂)(g) = 227.0kJ/mol
The standard enthalpy of production of acetylene is 227.0 kJ/mol
To know more about standard enthalpy refer to: https://brainly.com/question/11417334
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