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Heat energy changes in chemical reactions

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Question 47

Figure 1 shows the reaction profile for an endothermic chemical reaction.

Reaction profile for an endothermic reaction

Use the words or phrases from the box below to identify the quantities represented by the arrows X and Y.

  • activation energy
  • enthalpy change
  • products
  • reactants
a.

Label X:

[1]
b.

Label Y:

[1]

Heat energy changes in chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /Heat energy changes in chemical reactions

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.

Question bank