Chemical Kinetics questions
1373 published questions with worked solutions.
- Half life of a first order reaction is 900 second. If initial concentration of reactant is 0.08 mol ,dm^ -3 find concentration...
- Rate constant of decomposition of hydrogen peroxide is 0.0204 minutes^ -1 , calculate half life of reaction
- A first order reaction take 30 minutes for 75% decomposition, calculate its rate constant?
- Which of the following is an elementary reaction ?
- If concentration of reactant 'A' is increased by 10 times, rate of reaction increases 100 times. What is order of reaction if...
- What is order and molecularity of following reaction? NO_ 2(g) + NO_ 2(g) 2NO_ (g) + O_ 2(g)
- Half life of a first order reaction is 3 minute. What is the time required to reduce the concentration of reactant by 90% of its...
- Which of the following equations is correct regarding rate of disappearance of reactant and appearance of product for N_ 2(g) +...
- The rate constant for a first order reaction is 0.58 s^ -1 at 300 K and 0.026 s^ -1 at 290 K. What is the energy of activation?...
- The rate constant for the reaction, 2N_2O_ 5(g) 2N_2O_ 4(g) + O_ 2(g) is 4.98 10^ -4 s^ -1 . What is the order of reaction?
- In Haber process of production of ammonia Al_2O_3 is used as
- What is the order and molecularity of the following elementary reaction ? 2NO_ 2(g) 2NO_ (g) + O_ 2(g) , rate = k x [NO_2]^2
- Calculate the rate constant of first order reaction A B having rate 5.4 10^ -6 mol dm^ -3 s^ -1 and [A] = 0.3 M
- What is the role of catalyst in reaction ?
- In a reaction, 2N_2O_ 5(g) 4NO_ 2(g) + O_ 2(g) N_2O_5 disappears at a rate of 0.06 mol dm^ -3 s^ -1 Calculate rate of formation...
- Calculate rate constant of a first order reaction having half life 1 minute 40 second?
- Identify correct statement regarding order of reaction from following.
- Rate law for the reaction aA + bB cC + dD is r = k ,[A] ,[B]. Which from following conditions does NOT affect the rate of...
- For a reaction, A B , rate equation is r = k ,[A]^0 If initial concentration of reactant is 'a' mol ,dm^ -3 find half life time...
- What is the order and molecularity respectively for the elementary reaction given below? O_ 3(g) + O_ (g) 2 ,O_ 2(g) if r = k...
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