The potential-energy diagram below describes the hypothetical reaction A+B-C + D. Assuming the y-axis label refers to the enthalpy(H) per mol, which of the following statements concerning this reaction coordinate is/are correct? 1. The forward reaction is exothermic. The forward reaction rate is proportional to the change in enthalpy (AH) of the 2. forward reaction. E (forward)-E,(reverse) is equal to the change in enthalpy (AH) of the forward 3 Energy per mol- reaction. n Progress of reaction- O 1, 2, and 3 O1 and 3 O 3 only O1 only O 2 only C+D k

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The potential-energy diagram below describes the hypothetical reaction A + B → C + D. Assuming the y-axis label refers to the enthalpy (H) per mol, which of the following statements concerning this reaction coordinate is/are correct?

1. The forward reaction is exothermic.
2. The forward reaction rate is proportional to the change in enthalpy (ΔH) of the forward reaction.
3. Ea(forward) - Ea(reverse) is equal to the change in enthalpy (ΔH) of the forward reaction.

[Diagram Description: The graph shows potential energy (Energy per mol) on the y-axis versus the progress of the reaction on the x-axis. The energy starts high for reactants A + B, peaks at a transition state, and then drops to a lower level for the products C + D, suggesting an exothermic reaction.]

Options:
- 1, 2, and 3
- 1 and 3
- 3 only
- 1 only
- 2 only
Transcribed Image Text:The potential-energy diagram below describes the hypothetical reaction A + B → C + D. Assuming the y-axis label refers to the enthalpy (H) per mol, which of the following statements concerning this reaction coordinate is/are correct? 1. The forward reaction is exothermic. 2. The forward reaction rate is proportional to the change in enthalpy (ΔH) of the forward reaction. 3. Ea(forward) - Ea(reverse) is equal to the change in enthalpy (ΔH) of the forward reaction. [Diagram Description: The graph shows potential energy (Energy per mol) on the y-axis versus the progress of the reaction on the x-axis. The energy starts high for reactants A + B, peaks at a transition state, and then drops to a lower level for the products C + D, suggesting an exothermic reaction.] Options: - 1, 2, and 3 - 1 and 3 - 3 only - 1 only - 2 only
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