Answer: The overall enthalpy for the system is -1300 kJ.
Explanation:
Enthalpy change of the reaction is defined as the difference in the potential energy of the products and the potential energy of the reactants. This is represented as [tex]\Delta H_{rxn}[/tex]
The equation used to represent enthalpy change of the reaction follows:
[tex]\Delta H_{rxn}=\Delta H_{products}-\Delta H_{reactants}[/tex]
where,
[tex]\Delta H_{products}[/tex] = potential energy of the products = [(-200) + (-300)]kJ = -500kJ
[tex]\Delta H_{reactant}[/tex] = potential energy of the reactants = 800kJ
Putting values in above equation:
[tex]\Delta H_{rxn}=[-500-(800)]kJ=-1300kJ[/tex]
Hence, the overall enthalpy for the system is -1300 kJ.
