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Can you explain the answer of this question below:
Consider the reaction, 2A + B → Products. When concentration of B alone was doubled, the half-life of B did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is –           [AIEEE 2007]
  • A:
    L mol–1 s–1
  • B:
    no unit
  • C:
    mol L–1s–1
  • D:
    s–1
The answer is A.
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Can you explain the answer of this question below:Consider the reactio...
The correct answer is Option A.
For first-order reaction, half-life t1/2 = 
Since half-life does not depend on the concentration of reactants.
 
According to the given data, the order of reaction with respect to B is one, hence, does not change half-life.
 
Similarly, an order of reaction with respect to A is also one since the rate increases twice on doubling the concentration.
Hence, total order = 1 + 1 = 2 
Second order reaction and its unit is Lmol−1s−1.
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Can you explain the answer of this question below:Consider the reactio...
I think this reaction is first order reaction so answer should be option D
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Can you explain the answer of this question below:Consider the reactio...
The correct answer is Option A.
For first-order reaction, half-life t1/2 = 
Since half-life does not depend on the concentration of reactants.
 
According to the given data, the order of reaction with respect to B is one, hence, does not change half-life.
 
Similarly, an order of reaction with respect to A is also one since the rate increases twice on doubling the concentration.
Hence, total order = 1 + 1 = 2 
Second order reaction and its unit is Lmol−1s−1.
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Read the passage given below and answer the following questions:The rate of a reaction, which may also be called its velocity or speed, can be defined with relation to the concentration of any of the reacting substances, or to that of any product of the reaction. If the species chosen is a reactant which has a concentration c at time t the rate is - dc/dt, while the rate with reference to a product having a concentration x at time t is dx/dt. Any concentration units may be used for expressing the rate; thus, if moles per liter are employed for concentration and seconds for the time, the units for the rate are moles litre–1sec–1. For gas reactions pressure units are sometimes used in place of concentrations, so that legitimate units for the rate would be (mm. Hg) sec–1 and atm. sec–1 The order of a reaction concerns the dependence of the rate upon the concentrations of reacting substances; thus, if the rate is found experimentally to be proportional to the ath power of the concentration of one of the reactants A, to the both power of the concentration of a second reactant B, and so forth, via., rate = k CAα CAβ the over-all order of the reaction is simply n = α + β + ----- (2) Such a reaction is said to be of the αth order with respect to the substance A, the βth order with respect to B.In the following questions, a statement of Assertion followed by a statement of Reason is given. Choose the correct answer out of the following choices on the basis of the above passage.Assertion: For a reaction: P + 2Q → Products, Rate = k [P]1/2[Q]1 so the order of reaction is 1.5Reason: Order of reaction is the sum of stoichiometric coefficients of the reactants.

Read the passage given below and answer the following questions:The rate of a reaction, which may also be called its velocity or speed, can be defined with relation to the concentration of any of the reacting substances, or to that of any product of the reaction. If the species chosen is a reactant which has a concentration c at time t the rate is - dc/dt, while the rate with reference to a product having a concentration x at time t is dx/dt. Any concentration units may be used for expressing the rate; thus, if moles per liter are employed for concentration and seconds for the time, the units for the rate are moles litre–1sec–1. For gas reactions pressure units are sometimes used in place of concentrations, so that legitimate units for the rate would be (mm. Hg) sec–1 and atm. sec–1 The order of a reaction concerns the dependence of the rate upon the concentrations of reacting substances; thus, if the rate is found experimentally to be proportional to the ath power of the concentration of one of the reactants A, to the both power of the concentration of a second reactant B, and so forth, via., rate = k CAα CAβ the over-all order of the reaction is simply n = α + β + ----- (2) Such a reaction is said to be of the αth order with respect to the substance A, the βth order with respect to B.In the following questions, a statement of Assertion followed by a statement of Reason is given. Choose the correct answer out of the following choices on the basis of the above passage.Assertion: Reactions can occur at different speeds.Reason: Rate of reaction is also called speed of reaction.

Can you explain the answer of this question below:Consider the reaction, 2A + B→ Products. When concentration of B alone was doubled, the half-life of B did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is – [AIEEE 2007]A:L mol–1 s–1B:no unitC:mol L–1s–1D:s–1The answer is A.
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Can you explain the answer of this question below:Consider the reaction, 2A + B→ Products. When concentration of B alone was doubled, the half-life of B did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is – [AIEEE 2007]A:L mol–1 s–1B:no unitC:mol L–1s–1D:s–1The answer is A. 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 Can you explain the answer of this question below:Consider the reaction, 2A + B→ Products. When concentration of B alone was doubled, the half-life of B did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is – [AIEEE 2007]A:L mol–1 s–1B:no unitC:mol L–1s–1D:s–1The answer is A. covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Can you explain the answer of this question below:Consider the reaction, 2A + B→ Products. When concentration of B alone was doubled, the half-life of B did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is – [AIEEE 2007]A:L mol–1 s–1B:no unitC:mol L–1s–1D:s–1The answer is A..
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