During an investigation into the enthalpy change of a displacement reaction, a researcher sets up the reaction mixture inside a double-walled vacuum flask as shown below.
State why a double-walled vacuum flask is used rather than a copper beaker to contain the reaction mixture.
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.
