Chemical Kinetics questions
1373 published questions with worked solutions.
- In a catalytic reaction N_2+3H_2 2NH_3 (all in gaseous state) rate = [ NH_3 ] t =4.0 10^ -4 mole ,L^ -1 ,s^ -1 The rate of...
- 75% of a first order reaction is completed in 30 minutes. What is the time (in minutes) required for 93.75% of the reaction to be...
- Which of the following represents the expression for 3/4^ th life of 1st order reaction?
- A first order reaction requires 30 minutes for 50% completion. The time required to complete the reaction by 75% will be _________
- The conversion of A B follows second order kinetics. Doubling the concentration of A will increase the rate of formation of B by...
- A first order reaction with respect to the reactant A has a rate constant of 6 s^ -1 . If we start with [A]=0.5 mol/litre, then...
- Half life period of a first order reaction is 10 minutes. How much time is needed to change the concentration of reactants from...
- For a reaction A+B Products, it was found that rate of reaction increases four times if concentration of ‘A’ is doubled, but the...
- For a first order reaction, the ratio of time to complete 99.9% and half of reaction is _________
- Hydrolysis of cane sugar in presence of acid is a first order reaction with half life time of 4 hours. What fraction of sucrose...
- For a zero order reaction, the plot of [A] versus t is linear with a ________
- The rate for the 1st order reaction is 0.69 10^ -2 mol ,L^ -1 ,min^ -1 and the initial concentration is 0.2 mol ,L^ -1 . The half...
- For the first order reaction, plot of _ 10 (a-x) against time ‘t’ is a straight line with a negative slope equal to ________
- The rate of a chemical change at constant temperature is directly proportional to ________
- Time taken for completion of a zero order reaction is _________ (‘a’ is initial concentration, x is the amount decomposed at time...
- Thermal decomposition of a compound is 1st order reaction. If a sample of compound decomposes 50% in 120 minutes, how much time...
- In a reaction, when the concentration of reactant is increased two times and three times then, the increase in rate of reaction...
- After how many seconds will the concentration of the reactants in a first order reaction be halved, if the rate constant is 1.155...
- The reaction 2NO_ (g) +O_ 2(g) 2NO_ 2(g) is of first order. If volume of reaction vessel is reduced to 1/3, the rate of reaction...
- The rate law for the reaction, RCl+NaOH_ (aq) ROH+NaCl is given by Rate =k[ RCl ] The rate of the reaction will be _______
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