Advertisements
Advertisements
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?
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
APPEARS IN
संबंधित प्रश्न
Write two factors that affect the rate of reaction.
For the hydrolysis of methyl acetate in aqueous solution, the following results were obtained :
t/s | 0 | 30 | 60 |
[CH3COOCH3] / mol L–1 | 0.60 | 0.30 | 0.15 |
(i) Show that it follows pseudo first order reaction, as the concentration of water remains constant.
(ii) Calculate the average rate of reaction between the time interval 30 to 60 seconds.
(Given log 2 = 0.3010, log 4 = 0.6021)
Consider the reaction A ⇌ B. The concentration of both the reactants and the products varies exponentially with time. Which of the following figures correctly describes the change in concentration of reactants and products with time?
Why can we not determine the order of a reaction by taking into consideration the balanced chemical equation?
Assertion: Order and molecularity are same.
Reason: Order is determined experimentally and molecularity is the sum of the stoichiometric coefficient of rate determining elementary step.
In the presence of a catalyst, the heat evolved or absorbed during the reaction.
For a reaction A + B → products, the rate law is given by: r = `K[A]^(1/2)`. What is the order of reaction?
For a reaction R → p the concentration of reactant change from 0.03 m to 0.02 m in minute, calculate the average rate of the reaction using the unit of second.
If the 0.05 molar solution of m+ is replaced by a 0.0025 molar m+ solution, then the magnitude of the cell potential would be
The following data was obtained for chemical reaction given below at 975 K.
\[\ce{2NO(g) + 2H2(g) -> N2(g) + 2H2O(g)}\]
[NO] | [H2] | Rate | |
Mol L-1 | Mol L-1 | Mol L-1 s-1 | |
(1) | 8 × 10-5 | 8 × 10-5 | 7 × 10-9 |
(2) | 24 × 10-5 | 8 × 10-5 | 2.1 × 10-8 |
(3) | 24 × 10-5 | 32 × 10-5 | 8.4 × 10-8 |
The order of the reaction with respect to NO is ______. (Integer answer)