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Heat energy changes in chemical reactions

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Question 70

Figure 17 shows an incomplete reaction profile for the thermal decomposition of calcium carbonate, which is an endothermic reaction.

Figure 17: Incomplete reaction profile for the endothermic thermal decomposition of calcium carbonate. The vertical y-axis is labeled 'Energy' and the horizontal x-axis is labeled 'Progress of reaction'. A horizontal line on the left at a lower energy level is labeled 'Reactants (CaCO3)'. A horizontal line on the right at a higher energy level is labeled 'Products (CaO + CO2)'. There is an empty space between these two lines.

Complete the reaction profile in Figure 17 by drawing the profile curve, and label the activation energy (EaE_aEa​).

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Heat energy changes in chemical reactions Questions

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

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