Calculate the enthalpy of combustion of ethanol from the following data

CHEMISTRY · Subjective · A Level · Chemistry · Energetics · Energetics

Problem

Calculate the enthalpy of combustion of ethanol from the following data. Assume all the heat from the reaction is absorbed by the water. Compare your value with the data-booklet value and suggest reasons for any differences.

Quantity	Value
Mass of water in copper calorimeter	$200.00\,\text{g}$
Temperature increase in water	$13.00\,^{\circ}\text{C}$
Mass of ethanol burnt	$0.45\,\text{g}$

Related theory

Thermodynamics
Calorimetry
Heat capacity and work
Measurement of $\Delta U$ and $\Delta H$

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