Calculate ΔH∘ in kilojoules for the reaction ofacetylene (C2H2) (ΔH∘f=227.4kJ/mol) with O2 to yieldcarbon dioxide (CO2)(ΔH∘f=−393.5 kJ/mol) andH2O(g) (ΔH∘f=−241.8kJ/mol), a reaction which issupplied by the industrial gases industry for oxyacetylene gaswelding and cutting due to the high temperature of the flame.
2C2H2(g)+5O2(g)→4CO2(g)+2H2O(g)
Express your answer using one decimal place.
