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Selecting an exothermic reaction profile
Propane reacts with oxygen to produce carbon dioxide and water. The reaction is exothermic.
Figure 8 shows four reaction profiles.
Which is the correct reaction profile and labels for the reaction between propane and oxygen? Tick one box.
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Marking points
- 1 Selects profile B.
Why this answer loses marks
I chose the profile with the highest peak.
Peak height represents activation energy; exothermicity depends on products lying below reactants.