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Calculate the order of the reaction in A...

Calculate the order of the reaction in A and B :-
`{:(A,,,B,,,Rate),(("mol"//1),,,("mol"//1),,,),(0.05,,,0.05,,,1.2xx10^(-3)),(0.10,,,0.05,,,2.4xx10^(-3)),(0.05,,,0.10,,,1.2xx10^(-3)):}`

A

1 and 0

B

1 and 1

C

0 and 1

D

None of these

Text Solution

AI Generated Solution

The correct Answer is:
To calculate the order of the reaction with respect to reactants A and B, we can follow these steps: ### Step 1: Write the rate law expression The rate law for a reaction can be expressed in the form: \[ \text{Rate} = k[A]^m[B]^n \] where: - \( k \) is the rate constant, - \( [A] \) is the concentration of reactant A, - \( [B] \) is the concentration of reactant B, - \( m \) is the order of the reaction with respect to A, - \( n \) is the order of the reaction with respect to B. ### Step 2: Analyze the data We have the following data points: 1. \( [A] = 0.05 \, \text{mol/L}, [B] = 0.05 \, \text{mol/L}, \text{Rate} = 1.2 \times 10^{-3} \) 2. \( [A] = 0.10 \, \text{mol/L}, [B] = 0.05 \, \text{mol/L}, \text{Rate} = 2.4 \times 10^{-3} \) 3. \( [A] = 0.05 \, \text{mol/L}, [B] = 0.10 \, \text{mol/L}, \text{Rate} = 1.2 \times 10^{-3} \) ### Step 3: Determine the order with respect to A Compare the first two experiments: - From experiment 1 to experiment 2, the concentration of A doubles (from 0.05 to 0.10), while the concentration of B remains constant. - The rate also doubles (from \( 1.2 \times 10^{-3} \) to \( 2.4 \times 10^{-3} \)). Using the rate law: \[ \frac{\text{Rate}_2}{\text{Rate}_1} = \frac{k[A_2]^m[B_2]^n}{k[A_1]^m[B_1]^n} \] Substituting the values: \[ \frac{2.4 \times 10^{-3}}{1.2 \times 10^{-3}} = \frac{[0.10]^m[0.05]^n}{[0.05]^m[0.05]^n} \] This simplifies to: \[ 2 = \left(\frac{0.10}{0.05}\right)^m \Rightarrow 2 = 2^m \] Thus, \( m = 1 \). ### Step 4: Determine the order with respect to B Now, compare the first and third experiments: - The concentration of A remains constant (0.05), while the concentration of B doubles (from 0.05 to 0.10). - The rate remains the same (both are \( 1.2 \times 10^{-3} \)). Using the rate law: \[ \frac{\text{Rate}_3}{\text{Rate}_1} = \frac{k[A_3]^m[B_3]^n}{k[A_1]^m[B_1]^n} \] Substituting the values: \[ \frac{1.2 \times 10^{-3}}{1.2 \times 10^{-3}} = \frac{[0.05]^m[0.10]^n}{[0.05]^m[0.05]^n} \] This simplifies to: \[ 1 = \left(\frac{0.10}{0.05}\right)^n \Rightarrow 1 = 2^n \] Thus, \( n = 0 \). ### Conclusion The order of the reaction with respect to A is 1, and with respect to B is 0. ### Final Answer - Order with respect to A: 1 - Order with respect to B: 0

To calculate the order of the reaction with respect to reactants A and B, we can follow these steps: ### Step 1: Write the rate law expression The rate law for a reaction can be expressed in the form: \[ \text{Rate} = k[A]^m[B]^n \] where: - \( k \) is the rate constant, - \( [A] \) is the concentration of reactant A, ...
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