Enthalpy of combustion relating to the original experiment PDF

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Summary

The alcohols undergo complete combustion to form carbon dioxide and water. For example, ethanol is used as a fuel:

ethanol + oxygen → carbon dioxide + water

C2H5OH + 3O2 → 2CO2 + 3H2O

However, the alcohols can also be oxidised without combustion to produce carb...

Description

Enthalpy of combustion Aim: To measure enthalpy of combustion and compare it to standard values Assumptions: 1. The density of water is 1 g mL-1, so the mass of all volumes can be calculated. 2. The specific heat capacity of water is the same for pure water: 4.18 kJ mol -1 K-1. 3. Heat losses to the surroundings are negligible. Breezes and drafts will need to be kept to a minimum in the laboratory to prevent the spirit burner from waving about. Equipment:       

Small metal can Thermometer (either analogue or digital) Tripod and gauze mat Small spirit burner with ethanol 100 mL measuring cylinder Stirring rod Balance

Method:...