A reaction between substances A and B has been found to give the following data:

Question

A reaction between substances A and B has been found to give the following data:

3A + 2B   ---- 2C + D

[A] (mol/L)

[B] (mol/L)

Rate of appearance of C (mol/L-hr)

1.0 x 10-2

1.0

0.3 x 10-6

1.0 x 10-2

3.0

8.1 x 10-6

2.0 x 10-2

3.0

3.24 x 10-5

2.0 x 10-2

1.0

1.20 x 10-6

3.0 x 10-2

3.0

7.30 x 10-5

Using the above data, determine the order of the reaction with respect to A and B and the rate law, and calculate the specific rate constant.

[A] (mol/L)

[B] (mol/L)

Rate of appearance of C (mol/L-hr)

1.0 x 10-2

1.0

0.3 x 10-6

1.0 x 10-2

3.0

8.1 x 10-6

2.0 x 10-2

3.0

3.24 x 10-5

2.0 x 10-2

1.0

1.20 x 10-6

3.0 x 10-2

3.0

7.30 x 10-5

Explanation / Answer

from the table it is clear tsht

rate = K* [A]2 * [B]3

where K= rate constant

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