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For the first order reaction
2N2O5 (g) → 4NO2 (g)+ O2 (g)
- a)The concentration of the reaction decreases exponentially with time
- b)The half-life of the reaction decreases with increasing concentration of the reactant.
- c)The half life of the reaction depends on the initial concentration of the reactant.
- d)The reaction proceeds to 99.6% completion in eight half-life duration.
Correct answer is option 'A,B,D'. Can you explain this answer?
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For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The con...
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Option (a,b and d)
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For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The con...
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Option (a,b and d)
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For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The con...
Understanding the Reaction
The reaction 2N2O5 (g) → 4NO2 (g) + O2 (g) is a first-order reaction, characterized by its rate depending only on the concentration of N2O5.
Key Characteristics of a First-Order Reaction
- Exponential Decrease:
- The concentration of N2O5 decreases exponentially over time. This is a hallmark of first-order kinetics, where the rate of reaction is proportional to the concentration of the reactant.
- Half-Life Behavior:
- For first-order reactions, the half-life (time taken for the concentration to reduce to half) is constant and independent of the initial concentration of the reactant. Therefore, the statement that the half-life decreases with increasing concentration is incorrect, making option B false.
- Dependence on Initial Concentration:
- The half-life of a first-order reaction does not depend on the initial concentration of the reactant. Thus, option C is also incorrect.
Completion of Reaction
- Time to 99.6% Completion:
- In a first-order reaction, after 8 half-lives, approximately 99.6% of the reactant will have reacted. This is because each half-life reduces the remaining concentration by half, leading to substantial completion over several cycles.
Conclusion
In summary, the correct statements about the reaction are:
- A: The concentration of the reaction decreases exponentially with time.
- D: The reaction proceeds to 99.6% completion in eight half-life durations.
Thus, the correct answers are options A, B, and D.
The reaction 2N2O5 (g) → 4NO2 (g) + O2 (g) is a first-order reaction, characterized by its rate depending only on the concentration of N2O5.
Key Characteristics of a First-Order Reaction
- Exponential Decrease:
- The concentration of N2O5 decreases exponentially over time. This is a hallmark of first-order kinetics, where the rate of reaction is proportional to the concentration of the reactant.
- Half-Life Behavior:
- For first-order reactions, the half-life (time taken for the concentration to reduce to half) is constant and independent of the initial concentration of the reactant. Therefore, the statement that the half-life decreases with increasing concentration is incorrect, making option B false.
- Dependence on Initial Concentration:
- The half-life of a first-order reaction does not depend on the initial concentration of the reactant. Thus, option C is also incorrect.
Completion of Reaction
- Time to 99.6% Completion:
- In a first-order reaction, after 8 half-lives, approximately 99.6% of the reactant will have reacted. This is because each half-life reduces the remaining concentration by half, leading to substantial completion over several cycles.
Conclusion
In summary, the correct statements about the reaction are:
- A: The concentration of the reaction decreases exponentially with time.
- D: The reaction proceeds to 99.6% completion in eight half-life durations.
Thus, the correct answers are options A, B, and D.
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For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The concentration of the reaction decreases exponentially with timeb)The half-life of the reaction decreases with increasing concentration of the reactant.c)The half life of the reaction depends on the initial concentration of the reactant.d)The reaction proceeds to 99.6% completion in eight half-life duration.Correct answer is option 'A,B,D'. Can you explain this answer?
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For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The concentration of the reaction decreases exponentially with timeb)The half-life of the reaction decreases with increasing concentration of the reactant.c)The half life of the reaction depends on the initial concentration of the reactant.d)The reaction proceeds to 99.6% completion in eight half-life duration.Correct answer is option 'A,B,D'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The concentration of the reaction decreases exponentially with timeb)The half-life of the reaction decreases with increasing concentration of the reactant.c)The half life of the reaction depends on the initial concentration of the reactant.d)The reaction proceeds to 99.6% completion in eight half-life duration.Correct answer is option 'A,B,D'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The concentration of the reaction decreases exponentially with timeb)The half-life of the reaction decreases with increasing concentration of the reactant.c)The half life of the reaction depends on the initial concentration of the reactant.d)The reaction proceeds to 99.6% completion in eight half-life duration.Correct answer is option 'A,B,D'. Can you explain this answer?.
For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The concentration of the reaction decreases exponentially with timeb)The half-life of the reaction decreases with increasing concentration of the reactant.c)The half life of the reaction depends on the initial concentration of the reactant.d)The reaction proceeds to 99.6% completion in eight half-life duration.Correct answer is option 'A,B,D'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The concentration of the reaction decreases exponentially with timeb)The half-life of the reaction decreases with increasing concentration of the reactant.c)The half life of the reaction depends on the initial concentration of the reactant.d)The reaction proceeds to 99.6% completion in eight half-life duration.Correct answer is option 'A,B,D'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The concentration of the reaction decreases exponentially with timeb)The half-life of the reaction decreases with increasing concentration of the reactant.c)The half life of the reaction depends on the initial concentration of the reactant.d)The reaction proceeds to 99.6% completion in eight half-life duration.Correct answer is option 'A,B,D'. Can you explain this answer?.
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ample number of questions to practice For the first order reaction2N2O5 (g) → 4NO2 (g)+ O2 (g)a)The concentration of the reaction decreases exponentially with timeb)The half-life of the reaction decreases with increasing concentration of the reactant.c)The half life of the reaction depends on the initial concentration of the reactant.d)The reaction proceeds to 99.6% completion in eight half-life duration.Correct answer is option 'A,B,D'. Can you explain this answer? tests, examples and also practice Chemistry tests.
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