Seo gas + half o2 gas gives you o2 gas delta h formation is equal to delta h of formation of seo2 is equal to delta h of combustion of so how is it was wrong
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Notice that the standard enthalpy change of reaction, ΔH∘ , is ... oxygen gas, the reaction will give off 275 kJ of heat.
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the enthalpies of formation of c2h4 g co2 g h2o l at 25oc atmospheric pressure are 52 394 and 286 kj mol 1 ... Calculate the enthalpy of combustion of C2H4
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