Q16.65P Is the rate of an overall reacti... [FREE SOLUTION]

Chapter 16: Q16.65P (page 731)

Is the rate of an overall reaction lower, higher, or equal to the average rate of the individual steps? Explain.

Short Answer

Expert verified

The individual steps of a reaction rate can be fast as well as slow. The average of the individual rates includes the average if fast as well as slow step. On the other hand, the overall reaction rate is the rate of the slowest step only. Hence, it would be lesser as compared to the average of the individual rates.

Step by step solution

What is average rate

The average rateof reaction is calculated by averaging the change in concentration over a period of time. Chemical reactions occur at different rates. A response rate is usually defined as the change in the concentration of a chemical over time.

Average rate of the individual steps

A reaction rate's individual steps might be both rapid and slow. The average of individual rates takes into account both quick and slow steps. The entire reaction rate, on the other hand, is simply the rate of the slowest step. As a result, it would be lower than the average of the individual rates.

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Experiment	Initial $[C S_{2}]$ mol/L	Initial rate ( $m o l / L s^{- 1}$ )
1	0.100	$2.7 脳 10^{- 7}$
2	0.080	2.2 $脳 10^{- 7}$
3	0.055	1.5 $脳 10^{- 7}$
4	0.044	1.2 $脳 10^{- 7}$

Contact time (min)	Percent (%) inactivation
0.00	0.0
0.50	68.3
1.00	90.0
1.50	96.8
2.00	99.0
2.50	99.7
3.00	99.9

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Is the rate of an overall reaction lower, higher, or equal to the average rate of the individual steps? Explain.

Short Answer

Step by step solution

What is average rate

Average rate of the individual steps

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