A student investigates the temperature change during the displacement reaction between zinc powder and aqueous copper(II) sulfate using a simple calorimeter. The experimental setup is shown in Figure 1.
Identify the letter of the piece of apparatus (P, Q, R, or S) in Figure 1 that acts as the primary thermal insulator to minimize heat energy transfer to the surroundings.
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.
