Question:
Which one of the following reaction energy diagrams best represents a reaction in the reverse direction; that it is the most endothermic?
Which one of the following reaction energy diagrams best represents a reaction in the reverse direction; that it is the most endothermic?
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Reverse reaction endothermicity equals forward reaction exothermicity.
Updated On: Apr 23, 2026
- Diagram (a)
- Diagram (b)
- Diagram (c)
- Diagram (d)
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The Correct Option is B
Solution and Explanation
Step 1: Formula / Definition}
\[ \Delta G_{\text{reverse}} = -\Delta G_{\text{forward}} \]
Step 2: Calculation / Simplification}
Most endothermic in reverse direction \(\Rightarrow\) most exothermic in forward direction.
Diagram (b) shows largest drop in \(\Delta G\) for forward reaction.
Reverse reaction has highest positive \(\Delta G\).
Step 3: Final Answer
\[ \text{Diagram (b)} \]
\[ \Delta G_{\text{reverse}} = -\Delta G_{\text{forward}} \]
Step 2: Calculation / Simplification}
Most endothermic in reverse direction \(\Rightarrow\) most exothermic in forward direction.
Diagram (b) shows largest drop in \(\Delta G\) for forward reaction.
Reverse reaction has highest positive \(\Delta G\).
Step 3: Final Answer
\[ \text{Diagram (b)} \]
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