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The rate of reaction between two reactants A&B decreases by a factor of 4 if the conc of reactant B is doubled. The order of this reaction with respect to reactant B is?
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The rate of reaction between two reactants A&B decreases by a factor o...
Let rate of the reaction 
r= K[A]^n [B]^y 
r1 = K[a]^n[b]^y 
r2= K[a]^n[2b]^y = r1/4 
( r1/4)/r1= 2^y 
Thus, 2^y = 1/4
In this way y= - 2 
Henceforth the ans is - 2 
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The rate of reaction between two reactants A&B decreases by a factor o...
Order of Reaction with Respect to Reactant B
  • Given Information: The rate of reaction between reactants A and B decreases by a factor of 4 when the concentration of reactant B is doubled.
  • Definition of Reaction Order: Reaction order is the power to which the concentration of a reactant is raised in the rate law equation.
  • Mathematical Relationship: If the rate of reaction decreases by a factor of 4 when the concentration of B is doubled, this indicates that the rate of reaction is proportional to [B] to the power of -1. In other words, doubling the concentration of B leads to a 4-fold decrease in the rate, which corresponds to a reaction order of 1 with respect to B.


Therefore, the order of this reaction with respect to reactant B is 1. This means that the rate of the reaction is directly proportional to the concentration of reactant B raised to the power of 1 in the rate law equation.
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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.

The rate of reaction between two reactants A&B decreases by a factor of 4 if the conc of reactant B is doubled. The order of this reaction with respect to reactant B is?
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The rate of reaction between two reactants A&B decreases by a factor of 4 if the conc of reactant B is doubled. The order of this reaction with respect to reactant B is? 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 The rate of reaction between two reactants A&B decreases by a factor of 4 if the conc of reactant B is doubled. The order of this reaction with respect to reactant B is? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The rate of reaction between two reactants A&B decreases by a factor of 4 if the conc of reactant B is doubled. The order of this reaction with respect to reactant B is?.
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