मराठी

Assertion (A): For a zero-order reaction, the unit of rate constant and rate of reaction are same. Reason (R): Rate of reaction for zero order reaction is independent of concentration of reactant. - Chemistry

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प्रश्न

Assertion (A): For a zero-order reaction, the unit of rate constant and rate of reaction are same.

Reason (R): Rate of reaction for zero order reaction is independent of concentration of reactant.

पर्याय

  • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).

  • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).

  • Assertion (A) is true, but Reason (R) is false.

  • Assertion (A) is false, but Reason (R) is true.

MCQ
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उत्तर

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).

Explanation:

The rate of zero-order reaction does not depend on the concentration of the reactant. As a result, the unit for both rate of reaction and rate is the same.

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2022-2023 (March) Delhi Set 1

संबंधित प्रश्‍न

The decomposition of NH3 on a platinum surface is a zero-order reaction. If the rate constant (k)  is 4 x 10-3 ms-1, how long will it take to reduce the initial concentration of NH3 from 0.1 M to 0.064 M?


Derive integrated rate law for a zero-order reaction \[\ce{A -> Product}\].


For which of the following reaction the units of rate constant and rate of the reaction are same?


At high pressure the following reaction is zero order.

\[\ce{2NH3(g) ->[1130 K][Platinum catalyst] N2(g) + 3H2(g)}\]

Which of the following options are correct for this reaction?

(i) Rate of reaction = Rate constant.

(ii) Rate of the reaction depends on concentration of ammonia.

(iii) Rate of decomposition of ammonia will remain constant until ammonia disappears completely.

(iv) Further increase in pressure will change the rate of reaction.


A solution with initial concentration of a mol dm-3 follow zero order kinetic. The time taken for the completion of reaction is


Consider the following statement:-

(i) Increase in concentration of reactant increases the rate of a zero-order reaction.

(ii) Rate constant k is equal to collision frequency A if Ea = 0

(iii) Rate constant k is equal to collision frequency A if Ea = 0

(iv) In k vs t is a straight line

(v) In k vs 1/T is a straight line

Which of the above statement is correct?


For a zero-order reaction, the plot of [A]t vs t is linear with a ______


The slope in the plot of [R] Vs. time for a zero-order reaction is ______.


The following experimental rate data were obtained for a reaction carried out at 25°C:

\[\ce{A_{(g)} + B_{(g)} -> C_{(g)} + A_{(g)}}\]

Initial [A(g)]/mol dm−3 Initial [B(g)]/mol dm−3 Initial rate/mol dm−3s−1
3.0 × 10−2 2.0 × 10−2 1.89 × 10−4
3.0 × 10−2 4.0 × 10−2 1.89 × 10−4
6.0 × 10−2 4.0 × 10−2 7.56 × 10−4

What are the orders with respect to A(g) and B(g)?


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