A student measures the enthalpy change of a displacement reaction between zinc powder and aqueous copper(II) sulfate. The reaction is carried out in a standard glass beaker, and the maximum temperature rise is recorded to calculate the heat energy change.
State one way in which the student could modify the apparatus to reduce the rate of heat energy transfer to the surroundings, thereby improving the accuracy of the temperature change measurement.
Practise Edexcel GCSE Chemistry Heat energy changes in chemical reactions with exam-style questions for Foundation and Higher tier. 130 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
