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For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , the
- a)concentration of the reactant decreases exponentially with time
- b)half-life of the reaction decreases with increasing temperature
- c)half-life of the reaction depends on the initial concentration of the reactant
- d)reaction proceeds to 99.6% completion in eight half-life durations
Correct answer is option 'A,B,D'. Can you explain this answer?
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Most Upvoted Answer
For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)co...
2N2O6 (g) → 4NO2(g) + 5O2(g)
For a first order reaction, [A] = [A]0e-kt , concentration of A decreases with time exponentially.
Half-life for the first order reaction 
implies that half-life is independent of initial concentration.
implies that half-life is independent of initial concentration.From Arhennius Law, k = 
As temperature increases value of k increases, as can be seen from the equation.
As the value of k increases we conclude that the half-life decreases.
For 99.6% completion, [A] = 0.4 and [A]0 = 100
Therefore, number of half-lives used
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For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)co...
Concentration Decreases Exponentially with Time:
- In a first-order reaction, the rate of reaction is directly proportional to the concentration of the reactant.
- This leads to an exponential decrease in the concentration of the reactant with time, as the reaction proceeds.
Half-life Decreases with Increasing Temperature:
- According to the Arrhenius equation, the rate constant of a reaction increases with increasing temperature.
- Since the half-life of a reaction is inversely proportional to the rate constant, the half-life decreases with increasing temperature in a first-order reaction.
Dependence on Initial Concentration:
- The half-life of a first-order reaction remains constant and does not depend on the initial concentration of the reactant.
- This is a unique characteristic of first-order reactions, where the rate of reaction is only dependent on the concentration of the reactant.
Reaction Completion in Eight Half-life Durations:
- In a first-order reaction, the reactant concentration decreases to 99.6% of its initial value after eight half-life durations.
- This means that the reaction proceeds to almost complete completion within a short period of time, making it an efficient process.
Therefore, the correct options are A, B, and D as mentioned in the question.
Concentration Decreases Exponentially with Time:
- In a first-order reaction, the rate of reaction is directly proportional to the concentration of the reactant.
- This leads to an exponential decrease in the concentration of the reactant with time, as the reaction proceeds.
Half-life Decreases with Increasing Temperature:
- According to the Arrhenius equation, the rate constant of a reaction increases with increasing temperature.
- Since the half-life of a reaction is inversely proportional to the rate constant, the half-life decreases with increasing temperature in a first-order reaction.
Dependence on Initial Concentration:
- The half-life of a first-order reaction remains constant and does not depend on the initial concentration of the reactant.
- This is a unique characteristic of first-order reactions, where the rate of reaction is only dependent on the concentration of the reactant.
Reaction Completion in Eight Half-life Durations:
- In a first-order reaction, the reactant concentration decreases to 99.6% of its initial value after eight half-life durations.
- This means that the reaction proceeds to almost complete completion within a short period of time, making it an efficient process.
Therefore, the correct options are A, B, and D as mentioned in the question.
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For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)concentration of the reactant decreases exponentially with timeb)half-life of the reaction decreases with increasing temperaturec)half-life of the reaction depends on the initial concentration of the reactantd)reaction proceeds to 99.6% completion in eight half-life durationsCorrect answer is option 'A,B,D'. Can you explain this answer?
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For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)concentration of the reactant decreases exponentially with timeb)half-life of the reaction decreases with increasing temperaturec)half-life of the reaction depends on the initial concentration of the reactantd)reaction proceeds to 99.6% completion in eight half-life durationsCorrect answer is option 'A,B,D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)concentration of the reactant decreases exponentially with timeb)half-life of the reaction decreases with increasing temperaturec)half-life of the reaction depends on the initial concentration of the reactantd)reaction proceeds to 99.6% completion in eight half-life durationsCorrect answer is option 'A,B,D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)concentration of the reactant decreases exponentially with timeb)half-life of the reaction decreases with increasing temperaturec)half-life of the reaction depends on the initial concentration of the reactantd)reaction proceeds to 99.6% completion in eight half-life durationsCorrect answer is option 'A,B,D'. Can you explain this answer?.
For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)concentration of the reactant decreases exponentially with timeb)half-life of the reaction decreases with increasing temperaturec)half-life of the reaction depends on the initial concentration of the reactantd)reaction proceeds to 99.6% completion in eight half-life durationsCorrect answer is option 'A,B,D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)concentration of the reactant decreases exponentially with timeb)half-life of the reaction decreases with increasing temperaturec)half-life of the reaction depends on the initial concentration of the reactantd)reaction proceeds to 99.6% completion in eight half-life durationsCorrect answer is option 'A,B,D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the first order reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)concentration of the reactant decreases exponentially with timeb)half-life of the reaction decreases with increasing temperaturec)half-life of the reaction depends on the initial concentration of the reactantd)reaction proceeds to 99.6% completion in eight half-life durationsCorrect 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 reaction , 2N2O6 (g) → 4NO2(g) + 5O2(g) , thea)concentration of the reactant decreases exponentially with timeb)half-life of the reaction decreases with increasing temperaturec)half-life of the reaction depends on the initial concentration of the reactantd)reaction proceeds to 99.6% completion in eight half-life durationsCorrect answer is option 'A,B,D'. Can you explain this answer? tests, examples and also practice JEE tests.
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