(a)[3]
Plot the data values on the grid, circle the anomalous point, and draw a straight line of best fit.
(b(i))[1]
Extend the line of best fit and use it to determine the predicted temperature rise for an alcohol containing seven carbon atoms.
(b(ii))[1]
The water starts at $15^{\circ}\text{C}$. Explain why the temperature rise in (b)(i) cannot be achieved.
(b(iii))[1]
Suggest one modification to the experiment that would make it possible to obtain the temperature rise in (b)(i).