Chemical Kinetics questions
1373 published questions with worked solutions.
- What is the value of the slope of a graph obtained by plotting the concentration of reactant (A)_t versus time for zero order...
- The rate of the reaction 2A + 3b 2C + D is 6 10^ -4 mol dm^ -3 s^ -1 , when [A] = [B] = 0.3 mol dm^ -3 . If the reaction is of...
- The time required for 90% completion of a certain first order reaction is 1 hour. Calculate the time required for 99.9 %...
- The reaction given below 2NH_ 3(g) Pt N_ 2(g) + 3H_ 2(g) has rate of reaction 2.5 10^ -6 mol sec^ -1 . What is the rate of...
- For reaction A + B product rate if reaction is 3.6 10^ -2 mol dm^ -3 sec^ -1 . When [A] = 0.2 mol dm^ -3 and [B] = 0.1 mol dm^ -3...
- For the reaction 2NO_ (g) + 2H_ 2(g) N_ 2(g) + 2H_2O_ (s) rate = k[NO]^2[H_2] What is the order of reaction with respect to and...
- Which among the following statement is NOT true about rate constant ?
- A first order reaction takes 40 minute for 20% decomposition. Calculate it's rate constant.
- What is the role of glycerol in the decomposition of hydrogen peroxide?
- The equation for the rate constant is k = Ae^ -E_a/RT . A chemical reaction will proceed more rapidly if there is a decrease in
- If for a first-order reaction, [A]_0 = 1.0 M and [A]_t = 0.25 M after 276 s, find the value of the rate constant(k).
- The rate law for the reaction A + B →P is found to be rate = k[A]^2[B]. The rate constant of the reaction at 300 K is 6.0 M^ -2...
- What is order of radioactive decay of a substance ?
- The rate constant for the reaction 2N_2O_5 4NO_2 + O_2 is 3.0 10^ -5 s^ -1 . If the rate is 2.4 10^ -5 mole L^ -1 s^ -1 then the...
- The rate constant of reaction is 1.5 10^ 7 s^ -1 at 300 K and 3.0 10^ 7 s^ -1 at 330 K. What is the activation energy for the...
- In a first order reaction 60% of the reactant converts into product in 45 minute. Calculate rate constant of the reaction.
- For the reaction, CH_3Br_ (aq) + OH^-_ (aq) CH_3OH_ (aq) + Br^-_ (aq) rate of consumption of OH^-_ (aq) is x mol dm^ -3 s^ -1...
- For the reaction, H_ 2(g) + Br_ 2(g) 2HBr_ (g) , r = K[ H_2 ][ Br_2 ]^ 1 2 What is the molecularity and order of reaction...
- Which of the following is true for a reaction as per collision theory?
- Rate of reaction A+B product is 7.2 10^ -2 mol dm^ -3 s^ -1 at [A] = 0.4 mol dm^ -3 and [B]= 0.1 mol dm^ -3 . The reaction is...
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