Calculate the Standard Enthalpy of Formation of Liquid Methanol, CH₃OH(l) $\rarr$

question 10

Multiple Choice

Calculate the standard enthalpy of formation of liquid methanol, CH₃OH(l) , using the following information: C(graph) + O₂ $\rarr$ CO₂(g) $\Delta$ H° = -393.5 kJ/mol
H₂(g) + (1/2) O₂ $\rarr$ H₂O(l) $\Delta$ H° = -285.8 kJ/mol
CH₃OH(l) + (3/2) O₂(g) $\rarr$ CO₂(g) + 2H₂O(l) $\Delta$ H° = -726.4 kJ/mol

• A)-1,691.5 kJ/mol
• B)-238.7 kJ/mol
• C)1691.5 kJ/mol
• D)47.1 kJ/mol
• E)-47.1 kJ/mol

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