Interpretation:
The time taken for the decomposition of half of the original amount of the
Concept introduction:
Average reaction rate is calculated by using following formula
Here,
The negative sign in front of the above formula indicates the decrease in concentration of the reactant to yield a positive average reaction rate.
Answer to Problem 18STP
Option C is the correct answer.
Explanation of Solution
Experimental data of the reaction
Time (min) | |||
? | ? |
Here,
Here, reactant is
And change in time is-
Put these values in equation (1).
Therefore, the average reaction rate is
Calculate the time taken for decomposition of half of the original amount of the
Half of the initial reactant rate
Therefore,
Hence, time take is
The calculation shows that the correct option is C. Therefore, option A, B, D and E are not correct.
Chapter 16 Solutions
Chemistry: Matter and Change
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