An analyst is determining the enthalpy change of combustion of methanol using a copper calorimeter. In the experimental setup, the analyst uses a beaker to measure out 150 cm3 of water to be heated by the spirit burner.
State how this step of the procedure could be modified to obtain a more accurate measurement of the volume of water.
94 exam-style questions on Edexcel GCSE Chemistry 8.2 Heat energy changes in chemical reactions, covering 8.2.1 Exothermic and endothermic changes, 8.2.2 Bond breaking, bond making and overall energy change, 8.2.3 Calculating energy change from bond energies, and 8.2.4 Activation energy and reaction profiles. Each one has a worked solution and a mark scheme showing where the marks go.