Two compounds (A and B) are reacted with iodine using a process similar to the one used in this lab. Use the data below to determine the order of the reaction with respect to compound A. [A](M) [B](M) [12] (M) Rate(M/s) 4.0 1.0 0.0050 0.000043 8.0 1.0 0.0050 0.00017
Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
![### Determining the Order of a Reaction
#### Experiment Overview
In this experiment, two compounds (A and B) are reacted with iodine using a specific process. The provided data will be used to determine the order of the reaction with respect to compound A.
#### Data Table
The table below shows the concentration of compounds A and B, iodine, and the reaction rate.
| [A] (M) | [B] (M) | [I₂] (M) | Rate (M/s) |
|---------|---------|----------|---------------|
| 4.0 | 1.0 | 0.0050 | 0.000043 |
| 8.0 | 1.0 | 0.0050 | 0.00017 |
#### Data Analysis
- **Concentration of Compound A ([A]):** The concentration of compound A changes from 4.0 M to 8.0 M.
- **Concentration of Compound B ([B]):** The concentration of compound B remains constant at 1.0 M.
- **Concentration of Iodine ([I₂]):** The concentration of iodine remains constant at 0.0050 M.
- **Reaction Rate (Rate):** The reaction rate changes from 0.000043 M/s to 0.00017 M/s.
With this information, the order of reaction with respect to compound A can be deduced by examining how the change in concentration of A affects the reaction rate.
#### Calculating Reaction Order
To determine the reaction order with respect to A, we use the rate law expression:
\[ \text{Rate} = k [A]^m [B]^n [I₂]^p \]
By comparing the data from the two experiments:
1. When [A] increases from 4.0 M to 8.0 M:
\[ \frac{8.0}{4.0} = 2 \]
2. The corresponding change in rate:
\[ \frac{0.00017}{0.000043} \approx 3.95 \approx 4 \]
Since \( 4 \approx 2^2 \), the reaction order with respect to A is 2 (i.e., \(m = 2\)).
Therefore, the order of the reaction with respect to compound A is \(\boxed{2}\](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8c8d8a42-8de4-4466-9c46-ae253053e314%2Fc82fc95d-d065-4481-94e4-b7e4bcfc8f5b%2Fwhj2r46.png&w=3840&q=75)

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