Chemical Kinetics questions
1373 published questions with worked solutions.
- The activation energy for a reaction is 9.0 Kcal/mol. The increase in the rate constant when its temperature is increased from...
- In the following first order competing reactions: A+Reagent ; B+Reagent . Find the ratio of K_1/K_2 if only 50% of B will have...
- For the non-equilibrium process, A+B , the rate is first order with respect to A and second order respect to B. If 1.0 mole each...
- The rate of a reaction get doubles when the temperature changes from 7°C to 17°C. By what factor will it change for the...
- Given that K is the rate constant for some order of any reaction at temp. T then the value of _ T K= (where A is the Arrhenius...
- The rate of first order reaction, A , is 7.5 10^ -4 ,mol ,litre^ -1 sec^ -1 . If the concentration of A is 0.5 mol litre^ -1 the...
- A drop of solution (volume 0.05 mL) contains 3.0 10^ -6 mole of H^+. If the rate constant of disappearance of H^+ is 1.0 10^ 7...
- In a reaction 2A ; the concentration of A decreases from 0.5 mol litre^ -1 to 0.4 mol litre^ -1 in 10 minute. The rate of...
- The rate constant for a second order reaction is 8 10^ -5 ,M^ -1 min^ -1 . How long will it take a 1M solution to be reduced to...
- In a gaseous phase reaction: A_2(g) B(g)+ 12C(g), the increase in pressure from 100 mm to 120 mm is noticed in 5 minute. The rate...
- For a reaction A+2B C, rate is given by r=K[A][B]^2. The order of reaction is:
- For the reaction, N_2+3H_2 2NH_3, if d[NH_3] dt =2 10^ -4 ,mol ,L^ -1 s^ -1 , the value of - d[H_2] dt would be:
- The order for the reaction, H_2+Cl_2 h 2HCl over water is:
- The rate of reaction between two reactants A and B decreases by a factor 4, if the concentration of reactant B is doubled. The...
- For the reaction N_2(g)+3H_2(g) 2NH_3(g) under certain condition of temperature and partial pressure of the reactants, the rate...
- From the following data, the activation energy for the reaction (cal/mol): H_2+I_2 2HI | T,K | 1/T,K^ -1 | _ 10 K | |---|---|---|...
- An elementary reaction is given as 2P+Q . If concentration of Q is kept constant and concentration of P is doubled then rate of...
- The reaction; N_2O_5 in 2NO_2+ 12O_2(g) is of first order for N_2O_5 with rate constant 6.2 10^ -4 ,s^ -1 . What is the value of...
- The rate of disappearance of SO_2 in the reaction, 2SO_2+O_2 2SO_3 is 1.28 10^ -3 ,g/sec. Then the rate of formation of SO_3 is:
- Energy of activation for a reversible reaction is 6 kcal (E_a forward) and heat of reaction is -3 kcal. The energy of activation...
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