3b. What is the value of the rate constant, k, in your rate law, and give its units? k=

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3b) please see attached

3b. What is the value of the rate constant, k, in your rate law, and give its units?
k=
Transcribed Image Text:3b. What is the value of the rate constant, k, in your rate law, and give its units? k=
Expert Solution
Step 1

The given balanced reaction is:

Chemistry homework question answer, step 1, image 1

Suppose the rate law for above reaction is,

Chemistry homework question answer, step 1, image 2

here, k is the rate constant,

m and n are the order of reaction with respect to the reactants A and B respectively.

The values for m and n are calculated as follows,

By using the given table, the initial [A] is constant in experiment 1 and 3. Thus the rate aw expressions for experiment 1 and 3 are written as,

Chemistry homework question answer, step 1, image 3

Now, dividing the rate law expressions for reaction 1 and 3 we can get value of n as shown below,

Chemistry homework question answer, step 1, image 4

As the value of n is zero, the order of reaction with respect to reactant B is zero.

Step 2

Now, in the given table, the initial [B] is constant in experiment 2 and 3. Thus the rate aw expressions for experiment 2 and 3 are written as,

Chemistry homework question answer, step 2, image 1

Now, dividing the rate law expressions for reaction 2 and 3 we can get value of m as shown below,

Chemistry homework question answer, step 2, image 2

As the value of m = 2, the order of reaction with respect to reactant A is 2.

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