The graphs shown below are energy profiles for the following reaction - VCE - SSCE Chemistry - Question 11 - 2022 - Paper 1
Question 11
The graphs shown below are energy profiles for the following reaction.
A + B ⟶ C
ΔH < 0
The graphs represent the forward reaction, with and without a catalyst, an... show full transcript
Worked Solution & Example Answer:The graphs shown below are energy profiles for the following reaction - VCE - SSCE Chemistry - Question 11 - 2022 - Paper 1
Step 1
Identify the Reverse Reaction
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Answer
To find the correct energy profile for the reverse reaction, we need to understand the relationship between forward and reverse reactions in thermodynamics. The reverse reaction will have the same energy changes but will be oriented in the opposite direction.
Step 2
Analyze the Given Graphs
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Answer
We need to observe the graphs provided. Since we are determining the reverse reaction without a catalyst, we should look for the graph that depicts a lower energy state for the reactants compared to products, akin to the characteristic of exothermic reactions.
Step 3
Select the Correct Graph
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Answer
Upon reviewing the graphs, Graph 2 shows the energy profile for the reverse reaction without a catalyst, as it illustrates an energy increase from products back to reactants, consistent with an exothermic reaction.
Step 4
Final Answer
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