study the following reaction energy diagram: products energy Then answer the fol

Question

study the following reaction energy diagram: products energy Then answer the following questions about the chemical reaction. release Does this reaction release or absorb absorb energy? neither How many transition states occur during this reaction? Could this be an elementary reaction? said this reaction could not be elementary, then how many steps are in its mechanism? If you said this reaction could not be elementary, then the number of the step in its mechanism which is rate- determining. For example, if the first step is the rate- determining step, enter "1" here.

Explanation / Answer

Part a

The reactants are at a lower energy than the products. This indicates that the reactants have absorbed energy to form the products. Therefore, energy is absorbed.

Part b

The transition states in the reaction corresponds to the number of peaks seen in the energy diagram. These peaks represent the highest energy points where reactants are transitioned to products, hence the transition state. Therefore, there are 3 transition states.

Part c

An elementary reaction is when a reaction has a single step and the reactants goes into products througn a single transition state. This is a multi-step reaction. NO, this is not an elementary reaction.

Part d

The no of peaks in the energy diagram relate to the number of steps in the mechanism. Therefore there are 3 steps in the mechanism.

Part e

The rate determining step is the slowest step in the reaction mechanism. The speed of the step depends on the activation energy, which corresponds to the height of the peak. The higher the activation energy, slower the reaction. The higherst activation energy is seen in peak one, therefore step 1 is the rate determining step.

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