A student investigated the energy released when propanol is burned using the apparatus shown below.
The table below shows the results obtained:
| Mass of spirit burner and propanol at start in g | Mass of spirit burner and propanol at end in g |
|---|---|
| 121.85 | 120.25 |
In the student's investigation, the temperature of the 150 cm3 of water increased by 40∘C40^\circ\text{C}40∘C.
Calculate the mass of propanol needed to increase the temperature of the 150 cm3 water by 1∘C1^\circ\text{C}1∘C.
