Based on the thermodynamic properties provided for methanol (below and to the right), determine from the following list the equation(s) necessary to calculate the amount of energy needed for 22.8 kg of methanol from all gas at 65?C to ?112?C.

Is this overall process endothermic or exothermic?

• Endothermic
• Exothermic
• Cannot be determined from the given information.

q=n(37 kJ/mol) q=n(-37 kJ/mol) q=n(48.7 J/mol C)AT, where AT is positive q= n(43.8 J/mol C)AT, where AT is negative q=n(-3.18 kJ/mol) q= n(3.18 kJ/mol) q=n(81.1 J/mol C)AT, where AT is negative q=n(48.7 J/mol C)AT, where AT is negative . q=n(43.8 J/mol C)AT, where AT is positive q=n(81.1 J/mol C)AT, where AT is positive . Property Melting point Boiling point AHfus AHvap Cp (s) Gp (1) Cp (g) Value -94 65 3.18 37 48.7 81.1 43.8 Units C C kJ/mol kJ/mol J/mol C J/mol J/mol . . . C C