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प्रश्न
For a general reaction A → B, plot of concentration of A vs time is given in figure. Answer the following question on the basis of this graph.
(i) What is the order of the reaction?
(ii) What is the slope of the curve?
(iii) What are the units of rate constant?
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उत्तर
(i) Zero order reaction
(ii) [R] – [R]0 – kt
∴ Slope = – k
(iii) `(mol^-1L)/(s^-1)` = k[A]0 or k = mol–1 Ls–1
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संबंधित प्रश्न
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| [CH3COOCH3] / mol L–1 | 0.60 | 0.30 | 0.15 |
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| Column I | Column II | |
| (i) |  |
|
| (ii) |  |
(a) 1st order |
| (iii) |  |
(b) Zero-order |
| (iv) |  |
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|
The rate of reaction is concerned with decrease in the concentration of reactants or increase in the concentration of products per unit of time. It can be expressed as instantaneous rate at a particular instant of time and average rate over a large interval of time. A number of factors such as temperature, concentration of reactants, catalyst affect the rate of reaction. Mathematical representation of rate of a reaction is given by rate law: Rate = k[A]x [B]y x and y indicate how sensitive the rate is to change in concentration of A and B. Sum of x + y gives the overall order of a reaction. |
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OR
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