Consider the reaction
At a particular time during the reaction, nitrogen dioxide is being consumed at the rate of 0.00130 M/s. (a) At what rate is molecular oxygen being consumed? (b) At what rate is dinitrogen pentoxide being produced?
(a)
Interpretation:
At what rate is molecular oxygen being consumed has to be determined.
Concept introduction:
Rate: The rate is nothing but the change in concentration of substrate (reactant) or target (product) with time.
- The change in concentration term is divided by the respective stoichiometric coefficient.
- The negative sign indicates that substrates (reactants) concentration decrease as per the reaction progress.
Explanation of Solution
To solve this problem first calculate the rate constant for the given reaction and then determine the rate from the obtained rate constant.
The given reaction is
The rate expression for the above reaction is as follows
From the given data,
Where the negative sign indicates that the concentration of
Therefore, the rate of the given reaction is
The rate for molecular oxygen is determined as follows
(b)
Interpretation:
At what rate is dinitrogen pentoxide being produced has to be determined.
Concept introduction:
Rate: The rate is nothing but the change in concentration of substrate (reactant) or target (product) with time.
- The change in concentration term is divided by the respective stoichiometric coefficient.
- The negative sign indicates that substrates (reactants) concentration decrease as per the reaction progress.
Explanation of Solution
To solve this problem first calculate the rate constant for the given reaction and then determine the rate from the obtained rate constant.
The given reaction is
The rate expression for the above reaction is as follows
From the given data,
Where the negative sign indicates that the concentration of
Therefore, the rate of the given reaction is
The rate for dinitrogen pentoxide is determined as follows
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Chapter 19 Solutions
GEN COMBO CHEMISTRY: ATOMS FIRST; ALEKS 360 2S ACCESS CARD CHEMISTRY:ATOMS FIRST
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