Chemical Kinetics questions
1373 published questions with worked solutions.
- Calculate the time in seconds required to reduce the concentration of reactant of half of initial concentration for first order...
- Nitric oxide reacts with H_2 according to reaction 2 NO_ (g) + 2 H_ 2(g) N_ 2(g) + 2 H_2O_ (g) Identify the correct relationship...
- For a reaction, A + B product, it is found that rate law is r = k[ A ]^ 1.5 [ B ]^ 2.5 What is the order of reaction ?
- The half life values for two different first order reaction A and B are 75 minute and 2.5 hour respectively. What is the r_B r_A...
- Nitric oxide reacts with H_2 according to reaction. 2NO_ (g) + 2H_ 2 ,(g) N_ 2 ,(g) + 2H_2O_ (g) , identify correct relation for...
- Rate law for the reaction aA + bB cC + dD is r = k ,[A] ,[B], the rate of reaction doubles if
- Identify the catalyst used in following reaction at 500 °C? CO + H_2O CO_2 + H_2
- Half life of a first order reaction is 20 minute. The time taken to reduce th the initial concentration of reactant to ( 1 10 )^...
- Rate law for the reaction, NO_ 2(g) + CO_ (g) NO_ (g) + CO_ 2(g) is as R = k ,[ NO_2 ]^2 What is the order of reaction w.r.t. CO?
- Rate of reaction is r_1 = k[ A ]^a ,[ B ]^b. If the concentration of A is doubled and B is halved the new rate is r_2, What is...
- A first order reaction is 50% completed in 16 minute. Find the percentage of reactant reacting in 32 minute.
- Which of the following is an example of first order reaction?
- Find the rate of following reaction. 2N_2O_ 5 (g) 4NO_ 2 (g) + O_ 2 (g) if concentration of NO_2 increases to 5.2 10^ -3 M in 100...
- The rate constant of a first order reaction is 1.15 10^ -3 s ^ -1 . How long will 5 g of reactant take to reduce to 3 g?
- Which of the following is an example of second order reaction?
- What is the time required for 99% completion of a first order reaction if rate constant is 23.03 min^ -1 ?
- If Instantaneous rate of reaction is stated as - 1 2 d[x] dt = d[y] dt = 1 2 d[z] dt , identify the reaction.
- For a reaction A Product, rate constant is 6.93 x 10^ -3 hour^ -1 . What is order of reaction?
- If r = k [A]^2[B] is rate law equation for reaction A+B C, at [A] = 1 M and [B] = 0.2 M, Calculate rate of reaction if rate...
- The rate constant is doubled when temperature increases from 27^0C to 37^0C. What is activation energy in kJ?
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