Respuesta :
The change in enthalpy for the reaction of carbon dioxide is -393.5 kJ/mol. Thus, option A is correct.
The change in enthalpy of the reaction is given by the energy of the product and the energy of reactant difference.
The chemical equation for the reaction is:
[tex]\rm C \;(s)\;+\;2\;O_2\;(g)\;\to\;CO_2\;(g)[/tex]
Computation for the enthalpy change
The standard enthalpy change for carbon dioxide is -393.5 kJ/mol
The standard enthalpy change for oxygen is 0 kJ/mol
The change in enthalpy of reaction is given as:
[tex]\rm \Delta \textit H=CO_2-2\;\times\;O_2\\\Delta \textit H=-393.5\;kJ/mol-2\;\times\;0\;kJ/mol\\\Delta \textit H=-393.5\;kJ/mol[/tex]
The change in enthalpy for the reaction of carbon dioxide is -393.5 kJ/mol. Thus, option A is correct.
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