Chemical Kinetics questions
1373 published questions with worked solutions.
- A complex reaction takes place in following steps. NO_2Cl_ (g) NO_ 2(g) + Cl_ (g) (slow) NO_2Cl_ (g) + Cl_ (g) NO_ 2(g) + Cl_...
- What is the average rate of reaction when change in concentration of product is 0.05 M in 20 seconds?
- Identify role of glycerol in following reaction 2H_2O_ 2( ) glycerol 2H_2O_ ( ) + O_ 2(g)
- The slope of a graph [A]_t versus 't' for first order reaction is -2.5 10^ -3 s^ -1 Find rate constant of the reaction?
- Identify the order of following reaction? 2NO_ 2(g) 2NO_ (g) + O_ 2(g)
- Rate of the reaction A + B product is 3.6 10^ -2 mol dm^ -3 s^ -1 and rate law is r = k [A] [B]^2. What is rate constant of the...
- Calculate rate constant of a first order reaction having pre exponential factor 1.6 10^ 13 s^ -1 (E_a/2.303 RT = 21)
- Identify catalyst used in following reaction. CO_ (g) +H_2O_ (g) 623 ,K CO_ 2(g) +H_ 2(g)
- For the reaction, 2N_2O_ 5(g) 4NO_ 2(g) +O_ 2(g) N_2O_5 disappears at a rate of x mol dm^ -3 s^ -1 Find the rate of formation of...
- Which of the following statements is NOT correct regarding order of reaction?
- What is half life of a first order reaction if time required to decrease concentration of reactant form 0.4 M to 0.1 M is x hour?
- In a chemical reaction A is converted into B. The rates of reaction, starting with initial concentrations of A as 2 10^ -3 M and...
- The activation energy for a reaction which doubles the rate when the temperature is raised from 298 K to 308 K is
- For a first order reaction, (A) → products, the concentration of A changes from 0.1 M to 0.025 M in 40 minutes. The rate of...
- The rate of a reaction doubles when its temperature changes from 300K to 310K. Activation energy of such a reaction will be: (R =...
- The instantaneous rate of disappearance of MnO_4^- ion in the following reaction is 4.56 10^ -3 Ms^ -1 2MnO_4^- + 10I^- + 16H^+...
- The reaction X → Y is an exothermic reaction. Activation energy of the reaction for X into Y is 150 kJ mol^ -1 . Enthalpy of...
- The rate constant of a zero order reaction is 2.0 10^ -2 mol L^ -1 s^ -1 . If the concentration of the reactant after 25 seconds...
- The half-life period of a first-order reaction is 15 minutes. The amount of substance left after one hour will be
- In the reaction of formation of sulphur trioxide by contact process 2SO_2 + O_2 2SO_3 the rate of reaction was measured as d[O_2]...
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