An endothermic reaction with high activation energy for the forward reaction is given by the diagram

Options

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Explanation

To solve the question regarding the endothermic reaction with high activation energy, we can break down the explanation step by step.

### Step-by-Step Solution:

1. **Understanding Endothermic Reactions**:
- An endothermic reaction is characterized by the absorption of heat. This means that the energy of the products is greater than the energy of the reactants.
- In a graphical representation, this is shown by the products being at a higher energy level than the reactants.

**Hint**: Recall that in endothermic reactions, energy is absorbed, leading to a higher energy state for products compared to reactants.

2. **Activation Energy**:
- Activation energy is the minimum energy required for a reaction to occur. It represents the energy barrier that reactants must overcome to be converted into products.
- In the graph, this is depicted as a peak or "hump" that the reactants must cross.

**Hint**: Activation energy is crucial for determining the rate of a reaction; higher activation energy means a slower reaction rate.

3. **Graphical Representation**:
- The graph typically has potential energy on the y-axis and the reaction coordinate on the x-axis.
- The starting point on the graph represents the energy of the reactants, the peak represents the activation energy barrier, and the endpoint represents the energy of the products.

**Hint**: Visualize the graph: the reactants start at a lower energy level, rise to a peak (activation energy), and then drop down to a higher energy level for the products.

4. **Conclusion**:
- Based on the characteristics of the endothermic reaction and the activation energy, we can conclude that the correct representation of the reaction in the diagram will show the products at a higher energy level than the reactants, with a noticeable energy hump indicating the activation energy.

**Hint**: Look for a graph where the product energy is higher than the reactant energy, with a clear peak indicating the activation energy.

### Final Answer:
The correct representation of the endothermic reaction with high activation energy is the graph where the products are at a higher energy level than the reactants, and there is a significant activation energy barrier depicted.