Kinetics Worksheet With Answers Page 6
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10Base your answers to questions 25 and 26 on the potential
28. A potential energy diagram is shown below.
energy diagram below, which represents the reaction:
A + B → C + energy.
Which reaction would have the lowest activation energy?
1) the forward catalyzed reaction
2) the forward uncatalyzed reaction
25. Which numbered interval will change with the addition
3) the reverse catalyzed reaction
of a catalyst to the system?
4) the reverse uncatalyzed reaction
29. Given the potential energy diagram:
1) 1
3) 3
2) 2
4) 4
26. Which statement correctly describes this reaction?
1) It is endothermic and energy is absorbed.
2) It is endothermic and energy is released.
3) It is exothermic and energy is absorbed.
4) It is exothermic and energy is released.
27. Given the reaction:
(g) + 2O
(g) ↔ 2NO
(g)
N
2
2
2
∆ H = + 7.9 kcal/mole
The potential energy diagram of the reaction is shown
below.
With reference to energy, the reaction A + B → AB can
best be described as
1) endothermic, having a + ∆ H
2) endothermic, having a – ∆ H
3) exothermic, having a + ∆ H
4) exothermic, having a – ∆ H
Which arrow represents the heat of reaction
( ∆ H) for the reverse reaction?
1) 1
3) 3
2) 2
4) 4
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