In the reaction : 2N₂O₅ → 4NO₂ + O₂, initial pressure is 500 atm and rate
In the reaction : 2N₂O₅ → 4NO₂ + O₂, initial pressure is 500 atm and rate constant k is 3.38 ˣ 10⁻⁵ s⁻¹.After 10 minutes the final pressure of N₂O₅ is
Options
(a) […]
Chemistry
Which is correct about zero order reaction
Which is correct about zero order reaction
Options
(a) Rate of reaction depends on decay constant (b) Rate of reaction is independent of concentration (c) Unit of rate constant is concentration⁻¹ (d) Unit […]
The unit of second order reaction rate constant is
The unit of second order reaction rate constant is
Options
(a) L⁻¹ mol s⁻¹ (b) L² mol⁻² s⁻¹ (c) L mol⁻¹ s⁻¹ (d) s⁻¹
Correct Answer:
L mol⁻¹ s⁻¹
Explanation:
For a second […]
For a first order reaction, the time taken to reduce the initial concentration
For a first order reaction, the time taken to reduce the initial concentration by a factor of 1/4 is 20 minutes. The time required to reduce initial concentration by a factor of 1/16 is
The half-life of a reaction is inversely proportional to the square of the
The half-life of a reaction is inversely proportional to the square of the initial concentration of the reactant. Then the order of the reaction is
Options
(a) 0 (b) 1 (c) 2 (d) 3
If the initial concentration of the reactant is doubled, the time for half
If the initial concentration of the reactant is doubled, the time for half reaction is also doubled. Then the order of the reaction is
Options
(a) zero (b) fraction (c) three (d) one
A substance with initial concentration of a mol dm⁻³ follows zero order kinetics.
A substance with initial concentration of a mol dm⁻³ follows zero order kinetics. The time is takes for the completion of the reaction is (k = rate constant)
Options
(a) k/a (b) a/2k […]
During the decomposition of H₂O₂ to give oxygen, 48 g O₂ is formed per minute
During the decomposition of H₂O₂ to give oxygen, 48 g O₂ is formed per minute at a certain point of time. The rate of formation of water at this point is
Options
(a) […]
75% of a first order reaction was completed in 32min.When was 50% of the reaction
75% of a first order reaction was completed in 32 min.When was 50% of the reaction completed
Options
(a) 16 min (b) 24 min (c) 8 min (d) 4 min
Correct Answer:
16 […]
The activation energy of a reaction at a given temperature is found to be 2.303
The activation energy of a reaction at a given temperature is found to be 2.303 RT J mol⁻¹.The ratio of rate constant to the Arrhenius factor is
Options
(a) 0.01 (b) 0.1 (c) 0.02 […]