Chemical Kinetics questions
1373 published questions with worked solutions.
- For a first order reaction A Products, initial concentration of A is 0.1 M, which becomes 0.001 M after 5 minutes. Rate constant...
- Activation energy of any chemical reaction can be calculated if one knows the value of :
- Consider the reaction aX → bY, for which the rate constant at 30°C is 1 × 10⁻³ mol⁻¹ L s⁻¹. Which of the following statements are...
- t₁₀₀% is the time required for the 100% completion of the reaction while t₁/₂ is the time required for 50% of the reaction to be...
- For reaction A → P, rate constant k = 1.5 × 10³ s⁻¹ at 27°C. If activation energy for the above reaction is 60 kJ mol⁻¹, then the...
- For a first order reaction A → B: | t/min | [A]/M | |---|---| | 0 | 0.6500 | | x | 0.0650 | | 20 | 0.00065 | x = _______ min....
- First order gas phase reaction A→B+C. pᵢ=initial pressure of gas A, pₜ=total pressure of the reaction mixture at time t....
- If the half life of a first order reaction is 6.93 minutes then the time required for completion of 99% of the reaction will be...
- Decomposition of a hydrocarbon follows the equation k=(5.5×10¹¹ s⁻¹)e^(−28000 K/T). The activation energy of reaction is _______...
- Sucrose hydrolyses in acidic medium into glucose and fructose by first order rate law with t₁/₂=3 hour. The percentage of sucrose...
- Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : A reaction...
- For a certain reaction, the rate = k[A]^2[B], when the initial concentration of A is tripled keeping concentration of B constant,...
- The slope of Arrhenius plot ( k v/s 1T ) of first order reaction is -5 10^ 3 K. The value of E_a of the reaction is. Choose the...
- Consider the following first order gas phase reaction at constant temperature A(g) → 2B(g) + C(g). If the total pressure of the...
- Time required for completion of 99.9% of a First order reaction is ____ times of half life (t₁/₂) of the reaction.
- Consider the following data for the given reaction 2 HI(g) → H₂(g) + I₂(g) | Experiment | 1 | 2 | 3 | |---|---|---|---| | HI (mol...
- The half-life of radioisotope bromine-82 is 36 hours. The fraction which remains after one day is ________ × 10⁻². (Given antilog...
- For a reaction taking place in three steps at same temperature, overall rate constant K = K_1K_2 K_3 . If Ea₁, Ea₂ and Ea₃ are...
- NO₂ required for a reaction is produced by decomposition of N₂O₅ in CCl₄ as by equation 2N₂O₅(g) → 4NO₂(g) + O₂(g). The initial...
- The rate of First order reaction is 0.04 mol L⁻¹ s⁻¹ at 10 minutes and 0.03 mol L⁻¹ s⁻¹ at 20 minutes after initiation. Half life...
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