Integrated Rate Equations Chemical Kinetics
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- Chemical Kinetics Questions And Answers PDF
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- Write the integrated rate equation for a Znd order reaction of the type, 2A product.
Ans. K t a(a-x)
where K = rate constant.
a initial amount
X amount reacted at time t
22.What is the effect of temperature on activation energy?
Ans. There is no effect of temperature on activation
- Define rate constant of a reaction
Ans. It is a constant and equal to the rate of reaction
when concentration of the reactants is unity (l mole/litre).
- Hydrolysis of ester in presence of mineral acid is an example of order reaction.
Ans. Pseudo first order
- Alkaline hydrolysis of ester is an example of order reaction.
- If unit of rate constant is mole lit’ sec-l order of the reaction is.
- If for a reaction, the half life period is directly proportional initial concentration of reactant, what is the order of the reaction?
Ans. Zero order
- Write the Arrhenius equation Ea
Ans. K = Ae RT
Where K = rate constnat
A Collision number
Ea = activation energy
R 8.314 JK mole
T absolute temperature
- How does rate of reaction vary with activation energy ?
Ans. The reactions with smaller activation energy proceed faster and vice versa.
- How is heat of reaction related to activation energy ?
Ans. AH =E – E,
Where AH heat of reaction.
E activation energy for forward reaction.
E activation energy for backward reaction.