Given the Following Thermodynamic Data

question 14

Multiple Choice

Given the following Thermodynamic data:
D H f (Fe₂ O₃ ; s) = - 822 kJ/mol D H f (FeCl 3 ; s) = - 400 kJ/mol D H f (H₂ O; g) = - 242 kJ/mol D H f (H₂ O; ) = - 286 kJ/mol D H f (HCl; g) = - 92 kJ/mol D H f (HCl; aq) = - 167 kJ/mol What is the Standard Molar Enthalpy of Reaction D H rxn for the following reaction?
Fe₂ O₃(s) + 6 HCl (g) 2 FeCl 3 (s) + 3 H₂ O (g) D H rxn = ??

• A) - 1256 kJ/mol
• B) - 284 kJ/mol
• C) - 152 kJ/mol
• D) 272 kJ/mol
• E) 298 kJ/mol

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