13.117 Consider the potential energy profiles for the following three reactions (from left to right). (1) Rank the rates (slowest to fastest) of the reactions. (2) Calculate AH for each reaction and determine which reaction(s) are exothermic and which reaction(s) are endothermic. Assume the reactions have roughly the same frequency factors. Potential energy 30 kJ/mol A -40 kJ/mol A 50 kJ/mol 20 kJ/mol 40 kJ/mol Dans -20 kJ/mol

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13.117 Consider the potential energy profiles for the following three reactions (from left to right). (1) Rank the rates (slowest to fastest) of the
reactions. (2) Calculate AH for each reaction and determine which reaction(s) are exothermic and which reaction(s) are endothermic. Assume
the reactions have roughly the same frequency factors.
Potential energy
30 kJ/mol
A
-40 kJ/mol
Reaction progress
(a)
20 kJ/mol
A
50 kJ/mol
Reaction progress
(b)
40 kJ/mol
-20 kJ/mol
Reaction progress
(c)
Transcribed Image Text:13.117 Consider the potential energy profiles for the following three reactions (from left to right). (1) Rank the rates (slowest to fastest) of the reactions. (2) Calculate AH for each reaction and determine which reaction(s) are exothermic and which reaction(s) are endothermic. Assume the reactions have roughly the same frequency factors. Potential energy 30 kJ/mol A -40 kJ/mol Reaction progress (a) 20 kJ/mol A 50 kJ/mol Reaction progress (b) 40 kJ/mol -20 kJ/mol Reaction progress (c)
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