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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?
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उत्तर
Given that:
k = 4 x 10-3 Ms-1
`["A"_°]` = 0.1 M
[A] = 0.064 M
For a zero-order reaction,
k=`1/t {["A"_°]-["A"]}`
4 x 10-3 Ms-1 = `1/"t" {[0.1]-[0.064]}`
t =`( 0.1-0.064)/(4xx10^-3)=0.009xx10^3=9` seconds
संबंधित प्रश्न
The decomposition of NH3 on platinum surface is zero order reaction. What are the rates of production of N2 and H2 if k = 2.5 × 10−4 mol−1 L s−1?
The reaction between A and B is first order with respect to A and zero order with respect to B. Fill in the blanks in the following table:
| Experiment | A/mol L−1 | B/mol L−1 | Initial rate/mol L−1 min−1 |
| I | 0.1 | 0.1 | 2.0 × 10−2 |
| II | ______ | 0.2 | 4.0 × 10−2 |
| III | 0.4 | 0.4 | ______ |
| IV | ______ | 0.2 | 2.0 × 10−2 |
Give one example of zero order reaction.
Derive integrated rate law for a zero-order reaction \[\ce{A -> Product}\].
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.
Which of the following graphs is correct for a zero order reaction?
Derive an expression to calculate time required for completion of zero order reaction.
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.
Write the unit of rate constant of zero order reaction.
What is zero order reaction?
