2nd order reaction

1)order of reactions
2)second order of reaction
3)units of 2nd order reaction
4) rate equation of second order reaction
5) 2nd order reaction with different initial concentration and equal concentration of reactant

1. Second order reaction

2. Order of reaction The order of reaction is sum of the exponents of conc. Terms in the rate equation Types of order of reaction Zero order First order Second order Third order

3. Some definition of 2 nd order reaction Simply when concentration of two reactants changes in a reaction in slow step. Rate of reaction depends on the product of two concentration terms. When you have two components reacting with each other or one component reacting with it self.

4. Rate equation of 2 nd order reaction

5. Units of 2 nd order rate constant

6. 2nd order reaction with different initial concentration of reactant Initial conc. of A and B are a and b and after time t (a-x) and (b-x) are left , so Then ,after integration n = kt  

7. 2 nd order reaction with equal concentration of reactant Initial conc. of A and B are mole/dm-3 and after time t (a-x) are left for both = k [A][B] = k Then, after integration  

8. Half life and second order reaction If conc. Are same, then kt = t = . when , x = t= So, = [t =     The half life depends on initial concentration ‘a’ If k and k’ are same then order is second

9. Q.1. One mole of ethyl acetate was hydrolyzed with one mole of NaOH show that the reaction is second order T = 0 , 4 , 6 (a-x) = 8.04 , 5.3 , 4.58 K =  

10. Examples of 2 nd order reaction Hydrolysis of an ester by NaOH

11. Examples of 2 nd order reaction in gas phase Thermal decomposition of NO 2 + Thermal decomposition of HI +  

12. Example of 2 nd order reaction in solution phase Formation of ether + + NaI Formation of urea - CO -  

13. 2 nd order reaction & biological sciences Many important biological reactions, such as the formation of double-stranded DNA from two complementary strands, can be described using second order kinetics.

14. Formation of double stranded DNA

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