5. From the following heats of combustion, 3 CH,OH + Oe → COue) +2H,Ou 2(8) AH° =-726.4kJ (1) 2(g) 2 rxn Cigraphite) + O2(8) →CO«g) AH° =-393.5kJ rxn 1 +÷0, +Oe) → H,Ou 2 H218) ΔΗ. =-285.8kJ rxn Calculate the enthalpy of formation of methanol, CH3OH, from its elements: Cgraphie) + H3) +÷2%e) →CH,OHa (graphite)

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A chemist measures the enthalpy change AH during the following reaction: CS2(g) + 3 Cl2(g)→CC14(1) + S2Cl2(1) AH=-304. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ. reaction ΔΗ ☐ x10 3 -> 3 CS, (e) + C₁₂ (g) → CC₁₂ (1) + + S₂ C₁₂(1) Ok kJ 4CCI (1) + 4S2C₁₂ (1) → 4CS2(g) + 12Cl2(g) CCo̟ (1) + S₂C₁₂ (1) → CS₂ (g) + 3C₁₂ (g) OkJ kJ

Find the molar enthalpy of combustion in kJ/mol of glucose at some temperature and pressure C6H12O6 (s) + 6 O2 (g) → 6 CO2 (g) + 6 H2O (l) given that in an experiment under the same conditions the combustion of 0.108 g of glucose raised the temperature of a calorimeter with total heat capacity C= 1.155 kJ/°C by 1.31 °C. The molar mass of glucose is 180.1 g/mol. Ignore the heat absorbed by the combustion products; assume this is negligible, and all heat went into the calorimeter itself. Give the answer with 5 or more significant figures.