Chemical Kinetics questions
1373 published questions with worked solutions.
- Identify the expression for average rate for following reaction. N_ 2(g) + 3H_ 2(g) 2NH_ 3(g)
- If instantaneous rate of reaction is given as - 1 a d[A] dt = - 1 b d[B] dt = 1 c d[C] dt = 1 d d[D] dt , then the reaction is...
- Rate law for a reaction is r = k[ A ]^2[ B ], if rate constant is 6.25 mol^ -2 s^ -1 What is the rate of reaction when [ A ] = 1...
- What is the time needed to reduced the initial concentration of reactant to 10% in a first order reaction if its half life time...
- Which of the following is an elementary reaction ?
- Rate constant of a reaction, 2NO_2Cl_ (g) 2NO_ 2(g) + Cl_ 2(g) is 4.7672 min^ -1 . Calculate half life of reaction.
- Initial concentration of reactant in a first order reaction is 0.08 mol ,dm^ -3 What concentration would remain after 40 minute ?...
- If rate of reaction is given as 1 3 d[x] dt =- 1 2 d[y] dt =- d[Z] dt , the reaction can be represented as
- For the reaction N_ 2(g) +3 H_ 2(g) 2 NH_ 3(g) , rate of disappearance of N_ 2(g) is 2.22 x 10^ -3 mol ,dm^ -3 . What is the rate...
- Find the rate constant of first order reaction in second having half life 2.5 hour?
- For the reaction 2 NO_ (g) + O_ 2(g) 2 NO_ 2(g) , d[NO_2] dt = 0.052 mol ,dm^ -3 ,s^ -1 . Calculate d[O_2] dt
- Rate of a chemical reaction can be expressed in terms of
- What is value of rate constant of a first order reaction if slope of graph between _ 10 [A]_0 [A]_t (y axis) and time (x axis) is...
- A first order reaction takes 23.03 minutes for 20% decomposition. Calculate it's rate constant.
- The rate law for the reaction A+B C at 25^0C is given by rate = k[A] [B]^2. Calculate the rate of reaction if rate constant at...
- Calculate the time needed for reactant to decompose 99.9% if rate constant of first order reaction is 0.576 minute^ -1
- Identify rate law expression for 2NO_ (g) +Cl_ 2(g) 2NOCl_ (g) if the reaction is second order in NO and first order in Cl_2.
- Calculate the rate constant of first order reaction if half life of reaction is 40 minute.
- The rate constant of a reaction is k = 3.28 x 10^ -4 s^ -1 . Find the order of the reaction
- The half-life of a first-order reaction is 20 minutes. What is the rate constant (in min^ -1 ) for this reaction?
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