An investigator measures the temperature rise of a sample of water in an aluminium calorimeter placed above a spirit burner containing a volatile organic fuel.
State whether each of the modifications listed in the table would increase, decrease, or have no effect on the maximum temperature reached by the water.
| Modification | Effect on the maximum temperature reached by the water |
|---|---|
| Increasing the vertical distance between the flame and the base of the calorimeter | |
| Replacing the thermometer with a digital temperature probe that displays values to two decimal places | |
| Wrapping the outer wall of the aluminium calorimeter in a layer of mineral wool insulation |
In one trial, propan-1-ol was used as the fuel in the spirit burner. The heat energy transferred to the water was calculated to be 49500 J.
In this trial, the mass of propan-1-ol burned was 1.50 g.
The relative molecular mass of propan-1-ol is 60.0.
Calculate the molar enthalpy change of combustion of propan-1-ol in kJ/mol\text{kJ/mol}kJ/mol.
