Chemical Kinetics questions
1373 published questions with worked solutions.
- The rate of decomposition of the sample of a gas under high temperature and pressure was 0.50 ,atm ,s^ -1 when 15% had decomposed...
- At 298 K, the value of rate constant for a reaction A+B C is 1.10 ,M^ -1 s^ -1 . At the same temperature, if the concentration of...
- The unit of rate constant, k for a third order reaction is mol^ -X L^XS^ -1 . The value of 'X' is _______.
- The mechanism for the reaction; 2A+B C+D is given below: 1. A+B E+C (slow) 2. A+E D (fast). The overall order of the reaction is...
- The conversion of A+B C follow second order kinetics in each A and B. Doubling the concentrations of both A and B will increase...
- If the initial concentration of 0.6 M and the rate constant is 2 10^ -4 ,M ,s^ -1 , the half-life of the reaction is _____...
- The unit of the rate of constant is same of that the rate of a reaction. The order of the reaction is _______.
- If the unit of rate constant, (k) is second^ -1 , the order of reaction is _______.
- For a reaction 12A 2B, the rate of disappearance of A is related to the rate of appearance of B by the expression, - d[A] dt = 1X...
- Half-life period of a first order reaction, A B is 69.3 min. The value of rate constant is ________ hour^ -1 .
- The rate constant doubles when temperature is increased from 300 K to 310 K. Activation energy in kJ is ________. [Given: _ 10...
- The rate of the 1st order reaction A B is 5 10^ -5 ,min^ -1 ... (rate constant given as such). When the concentration of A is 0.5...
- For a first order reaction, the half-life is 10 mins. How much time in minutes will it take to reduce the concentration of...
- Reaction occurs in following two steps: 1. ClO^-+ClO^- k_1 ClO_2^-+Cl^- (Slow step) 2. ClO_2^-+ClO^- k_2 ClO_3^-+Cl^- (Fast...
- For a hypothetical reaction, 2A+B , the rate law is given by, Rate =k[A][B]^2. The molar concentration of 'A' is kept constant...
- The order of reaction for the decomposition of gaseous ammonia on the hot platinum surface is ________.
- A plot of k versus 1T for a reaction gives a straight line with slope -2.0 10^3 ,K. The energy of activation for the reaction is...
- Given: H_2(g)+I_2(g) 2HI(g). How many of the following expressions are CORRECT with respect to average rate of reaction? 1. -...
- Consider an elementary reaction, 2A+B C+D; doubling the concentration of A (keeping the concentration of B constant) increases...
- The rate constant of the reaction A B is 1.0 10^ -4 ,M ,s^ -1 . After 100 min, if the concentration of A is 4.40 M, then...
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