Chemical Kinetics questions
1373 published questions with worked solutions.
- Ethyl acetate is hydrolyzed in acidic medium. Its order of reaction and molecularity are respectively :
- For the reaction N_2 + 3H_2 2NH_3. The rate of change of concentration for hydrogen is -0.3 10^ -4 ,M ,S^ -1 . The rate of change...
- Rate of chemical reaction can be kept constant by
- An endothermic reaction A B has an activation energy as X KJ Mol^ -1 of A. If energy change of the reaction as Y KJ, the...
- Which one of the following formula represents the first order reaction?
- For a first order reaction, the ratio of times to complete 99.9% and half of the reaction is
- For a single step reaction : A + 2B product the Molecularity is
- In the first order reaction 75% of the reactant disappeared in 1.386 h. Calculate the rate constant of reaction.
- The minimum energy required for molecules to enter into chemical reaction is called
- Which of the following represents the expression for 3/4^ th of concentration remaining of a first order reaction?
- The chemical reaction in which reactants require high amount of activation energy are generally
- The hydrolysis of ethyl acetate CH_3COOC_2H_5 H^+ CH_3COOH + C_2H_5OH is
- In hydrolysis of organic chloride with excess of water RCl + H_2O ROH + HCl Molecularity and order of reaction is
- The concentration of a reactant in a solution falls (i) from 0.2 to 0.1 M in 2 hrs. (ii) from 0.2 to 0.05 M in 4 hrs. The order...
- Certain bimolecular reaction which follows the Kinetics of first order are called
- The hydrolysis of ethyl acetate was carried out separately with 0.05 M HCl and 0.05 M H_2SO_4. The rate constants were found to...
- The logarithmic of rate constant of a reaction
- If [A] is the concentration of A at any time t and [A_0] is the concentration at t = 0, then for the first order reaction, the...
- A first order reaction takes 100 min for completion of 60% of reaction. The time required for completion of 90% of the reaction is
- A first order reaction has specific rate constant of 2 min^ -1 . The half-life of this reaction will be
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