According to the following figure, the magnitude of the enthalpy change of the reaction in is . (Integer answer)

Question

According to the following figure, the magnitude of the enthalpy change of the reaction  in  is . (Integer answer)

Canvas Classes · Accepted Answer

Strategy:
 Analyze the provided enthalpy level diagram to find the direct energy difference between the specified initial and final states.

Step 1: Intermediate analysis
From the diagram:
- The path  has  (exothermic).
- The path  has  (exothermic).

Step 2: Apply Hess's Law
The direct conversion  is the sum of these two steps:
.
The magnitude of the change is .

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