Chemical Kinetics questions
1373 published questions with worked solutions.
- The time taken for the completion of 3/4 of a first order reaction is
- At 373 K, a gaseous reaction A 2B+C is found to be of first order. Starting with pure A, the total pressure at the end of 10 min...
- The rate of a reaction is expressed in different ways as follows: + 12 d[C] dt =- 15 d[D] dt =+ 13 d[A] dt =- d[B] dt The...
- Assertion: The numerical value of specific rate constant is independent of the concentration of any species present in the...
- The rate law for the reaction RCl+NaOH ROH+NaCl is given by Rate =k[RCl]. The rate of this reaction
- For reaction A B, the rate constant k_1=A_1e^ -E_ a1 /RT and for the reaction X Y, the rate constant k_2=A_2e^ -E_ a2 /RT . If...
- The rate constant of a reaction is given by k=2.1 10^ 10 (-2700/T). It means that
- For the reaction H_2(g)+Br_2(g) 2HBr(g) the experimental data suggest rate =k[H_2][Br_2]^ 1/2 . The molecularity and order of the...
- The unit and value of rate constant and that of rate of reaction are same for
- What is the activation energy for the decomposition of N_2O_5 as N_2O_5 2NO_2+ 12O_2, if the values of rate constant are 3.45 10^...
- Assertion: For a first order reaction the plots of rate vs. concentration is straight line. Reason: For a first order reaction,...
- For a first order reaction, A , the rate of reaction at [A]=0.2M is 1.0 10^ -2 ,mol ,L^ -1 min^ -1 . The half-period for the...
- The rate constant for the reaction 2N_2O_5 4NO_2+O_2 is 3.0 10^ -5 ,s^ -1 . If the rate is 2.40 10^ -5 ,mol ,L^ -1 s^ -1 , then...
- A drop of a solution (volume = 0.05 mL) contains 6 10^ -7 ,mol of H^+. If the rate of disappearance of H^+ is 6.0 10^5 ,mol/L s,...
- Consider the following statements for a second order reaction 2A P and score of each statement a. [A]= [A_0] 1+kt — score 3 b. A...
- For the reaction: H_2+Cl_2 sunlight 2HCl, taking place on water. Find the order of reaction.
- For the reaction NO_2+CO CO_2+NO, the experimental rate expression is - dc dt =k[NO_2]^2. Find the number of molecules of CO...
- Two substances A (t_ 1/2 =5 ,min) and B (t_ 1/2 =15 ,min) follow first order kinetics and are taken in such a way that initially...
- For the reaction A , it is found that the rate of reaction increases by a factor of 6.25 when concentration of A increases by a...
- What is order of reaction for which rate becomes half if volume of the container having same amount of reactant is doubled?...
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