NEET-XII-Chemistry
04: Chemical Kinetics
- #10In a reaction between A and B, the initial rate of reaction (r0) was measured for different initial concentrations of A and B as given below:
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A/ mol L-1
0.20
0.20
0.40
B/ mol L-1
0.30
0.10
0.05
r0/ mol L-1 s-1
5.07 × 10-5
5.07 × 10-5
1.43 × 10-4
What is the order of the reaction with respect to A and B?
Ans : Let the order of the reaction with respect to A be x and with respect to B be y.
Therefore,

Dividing equation (i) by (ii), we obtain

Dividing equation (iii) by (ii), we obtain

= 1.496
= 1.5 (approximately)
Hence, the order of the reaction with respect to A is 1.5 and with respect to B is zero.
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