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प्रश्न
The slope in the plot of [R] Vs. time for a zero-order reaction is ______.
विकल्प
`(+"k")/2.303`
`(-"k")/2.303`
−k
+k
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उत्तर
The slope in the plot of [R] Vs. time for a zero-order reaction is −k.
Explanation:
For the reaction, \[\ce{R -> Products}\]
The integrated zero-order rate equation is [R] = −kt + [R0]
Comparing with the equation of a straight line, y = mx + c, if we plot [R] against t, we get a straight line with slope = −k and intercept equal to [R0]·
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संबंधित प्रश्न
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 |
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\[\ce{2NH3(g) ->[1130 K][Platinum catalyst] N2(g) + 3H2(g)}\]
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.
Derive an expression to calculate time required for completion of zero order reaction.
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?
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)?
What is zeroth order reaction? Derive its integrated rate Law. What are the units of rate constant?
Derive integrated rate law for zero order reaction.
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