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Read the passage given below and answer the following questions:
The half-life of a reaction is the time required for the concentration of reactant to decrease by half, i.e.,
[A]t = [A]/2
For first order reaction,
t1/2 = 0.693/k
This means t1/2 is independent of initial concentration. Figure shows that typical variation of concentration of reactant exhibiting first order kinetics. It may be noted that though the major portion of the first order kinetics may be over in a finite time, but the reaction will never cease as the concentration of reactant will be zero only at infinite time.
The following questions are multiple choice questions. Choose the most appropriate answer:
Q. A first order reaction has a rate constant k = 3.01 x 10-3 /s. How long it will take to decompose half of the reactant?
  • a)
    2.303 s
  • b)
    23.03 s
  • c)
    230.3 s
  • d)
    2303 s
Correct answer is option 'C'. Can you explain this answer?
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Read the passage given below and answer the following questions:The half-life of a reaction is the time required for the concentration of reactant to decrease by half, i.e.,[A]t = [A]/2For first order reaction,t1/2 = 0.693/kThis means t1/2 is independent of initial concentration. Figure shows that typical variation of concentration of reactant exhibiting first order kinetics. It may be noted that though the major portion of the first order kinetics may be over in a finite time, but the reaction will never cease as the concentration of reactant will be zero only at infinite time.The following questions are multiple choice questions. Choose the most appropriate answer:Q. A first order reaction has a rate constant k = 3.01 x 10-3 /s. How long it will take to decompose half of the reactant?a)2.303 sb)23.03 sc)230.3 sd)2303 sCorrect answer is option 'C'. Can you explain this answer?
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Read the passage given below and answer the following questions:The half-life of a reaction is the time required for the concentration of reactant to decrease by half, i.e.,[A]t = [A]/2For first order reaction,t1/2 = 0.693/kThis means t1/2 is independent of initial concentration. Figure shows that typical variation of concentration of reactant exhibiting first order kinetics. It may be noted that though the major portion of the first order kinetics may be over in a finite time, but the reaction will never cease as the concentration of reactant will be zero only at infinite time.The following questions are multiple choice questions. Choose the most appropriate answer:Q. A first order reaction has a rate constant k = 3.01 x 10-3 /s. How long it will take to decompose half of the reactant?a)2.303 sb)23.03 sc)230.3 sd)2303 sCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Read the passage given below and answer the following questions:The half-life of a reaction is the time required for the concentration of reactant to decrease by half, i.e.,[A]t = [A]/2For first order reaction,t1/2 = 0.693/kThis means t1/2 is independent of initial concentration. Figure shows that typical variation of concentration of reactant exhibiting first order kinetics. It may be noted that though the major portion of the first order kinetics may be over in a finite time, but the reaction will never cease as the concentration of reactant will be zero only at infinite time.The following questions are multiple choice questions. Choose the most appropriate answer:Q. A first order reaction has a rate constant k = 3.01 x 10-3 /s. How long it will take to decompose half of the reactant?a)2.303 sb)23.03 sc)230.3 sd)2303 sCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the passage given below and answer the following questions:The half-life of a reaction is the time required for the concentration of reactant to decrease by half, i.e.,[A]t = [A]/2For first order reaction,t1/2 = 0.693/kThis means t1/2 is independent of initial concentration. Figure shows that typical variation of concentration of reactant exhibiting first order kinetics. It may be noted that though the major portion of the first order kinetics may be over in a finite time, but the reaction will never cease as the concentration of reactant will be zero only at infinite time.The following questions are multiple choice questions. Choose the most appropriate answer:Q. A first order reaction has a rate constant k = 3.01 x 10-3 /s. How long it will take to decompose half of the reactant?a)2.303 sb)23.03 sc)230.3 sd)2303 sCorrect answer is option 'C'. Can you explain this answer?.
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