Chemical Kinetics questions
1373 published questions with worked solutions.
- For two gaseous reactions, the following data are given A B; k_1=10^ 10 e^ -20 , 000/T C D; k_2=10^ 12 e^ -24 , 606/T The...
- The activation energies of two reactions are E_1 and E_2 (E_1>E_2). If the temperature of the system is increased from T_1 to...
- Activation energy of a reaction [J & K CET 2008]
- A chemical reaction proceeds following the formula k=PZe^ -E_a/RT . Which of the following processes will increase the rate of...
- The activation energy of the exothermic reaction A B is 80 kJ mol^ -1 . The heat of reaction is 200 kJ mol^ -1 . The activation...
- In respect of the equation k=Ae^ -E_a/RT in chemical kinetics, which one of the following statements is correct? [MP PET 2007]
- Which of the following statements is in accordance with collision theory? I. Rate is directly proportional to collision...
- Which of the following increases on increase of temperature? [DCE 2007]
- The rate constant of a first order reaction at 27°C is 10^ -3 ,min^ -1 . The temperature coefficient of this reaction is 2. What...
- Temperature coefficient of a reaction is 2. When temperature is increased from 30°C to 100°C, the rate of reaction increases by...
- Rate of a reaction can be expressed by Arrhenius equation as k=Ae^ -E/RT . In this equation, E represents [AIEEE 2006]
- **Assertion:** Molecularity has no meaning for a complex reaction. **Reason:** The overall molecularity of a complex reaction is...
- **Assertion:** The order of reaction may be negative. **Reason:** In some cases, the rate of the reaction decreases as the...
- **Assertion:** If the activation energy of a reaction is zero, temperature will have no effect on the rate constant. **Reason:**...
- **Assertion:** The order of reaction can have a fractional value. **Reason:** The order of reaction cannot be written from the...
- **Assertion:** According to transition state theory, for the formation of an activated complex, one of the vibrational degrees of...
- If the concentration of reactants is increased by 'x' then rate constant k becomes
- The differential rate law for the reaction 4NH_3(g)+5O_2(g) 4NO(g)+6H_2O(g) is
- The rate of a gaseous reaction is equal to k[A][B]. The volume of the reaction vessel containing these gases is reduced by...
- For a reaction of the type A+B x products, it is observed that doubling the concentration of A alone makes the rate k_1 times as...
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