Home
Class 12
CHEMISTRY
Consider the following case of competing...

Consider the following case of competing `1^(st)` order reactions.

After the start of the reaction at t=0 with only A,the [C] is equal to the [D] at all time.The time in which all three concentrations wil be equal is given by :

A

`t=1/(2k_1)ln3`

B

`t=1/(2k_2)ln3`

C

`t=1/(3k_1)ln2`

D

`t=1/(3k_2)ln2`

Text Solution

Verified by Experts

The correct Answer is:
A,B
`k_1=k_2`
`implies 2/3rd` of A has reacted for [A] =[C]=[D]
`:. K_1+k_2=1/t "In"([A]_0)/(1/3[A]_0)`
`implies t=1/(k_1+k_2)"In" 3=1/(2k_1)"In"3=1/(2k_2)"In"3`
Promotional Banner

Topper's Solved these Questions

  • QUALITATIVE ANALYSIS PART 1

    RESONANCE|Exercise A.L.P|39 Videos

  • SOLID STATE

    RESONANCE|Exercise PHYSICAL CHEMITRY (SOLID STATE)|45 Videos

Similar Questions

Explore conceptually related problems

In a first order reaction fraction of the total concentration of the reactant varies with time 't' is equal to

Which of the following is/are correct for the first order reaction ? (a is initial concentration of reactant, x is concentration of the reactant reacted and t is time)

Consider the following in respect of zero order reaction. I. t_(1//2) is directly proportional to the initial concentration II. Time taken for the completion of the reaction is twice its t_(1//2) III Concentration of the reactant decreases linearly with time Which of the statements given above are correct ?

For the second order reaction, concentration (x) of the product at time t starting with initial concentration [A]_(o) is :

RESONANCE-RANK BOOSTER-All Questions
  1. A certain reaction obeys the rate equation (in the integrated form) [C...

    Text Solution

    |

  2. A certain reaction A rarr B follows the given concentration (Molarity)...

    Text Solution

    |

  3. Consider the following case of competing 1^(st) order reactions. ...

    Text Solution

    |

  4. Assertion (A) : If the activation energy of a reaction is zero, temper...

    Text Solution

    |

  5. The rate law expresses the relationship of the rate of a reaction to t...

    Text Solution

    |

  6. The rate law expresses the relationship of the rate of a reaction to t...

    Text Solution

    |

  7. The following data were observed for the following reaction at 25^(@)C...

    Text Solution

    |

  8. The following data were observed for the following reaction at 25^(@)C...

    Text Solution

    |

  9. The following data were observed for the following reaction at 25^(@)C...

    Text Solution

    |

  10. Match the following columns

    Text Solution

    |

  11. Match order of the reaction (in List-I) with the corresponding rate co...

    Text Solution

    |

  12. For the reaction Ato prouducts, the following data is given for a part...

    Text Solution

    |

  13. If (dx)/(dt)=k[H(3)O^(+)]n and rate becomes 100 times when pH change...

    Text Solution

    |

  14. The gas phase decomposition of dimethyl ether follows first order kine...

    Text Solution

    |

  15. 105 mL of pure water at 4^(circ)C saturated with NH(3) gas yielded a s...

    Text Solution

    |

  16. Volume V(1)mL of 0.1 M K(2)Cr(2)O(7) is needed for complete oxidation ...

    Text Solution

    |

  17. 100 ml of 0.1 M NaAl(OH)(2)CO3 is neutralised by 0.25 N HCl to form Na...

    Text Solution

    |

  18. 25mL of 2N HCl, 50 mL "of" 4N HNO(3) and xmL H(2)SO(4) are mixed toget...

    Text Solution

    |

  19. An excess of NaOH was added to 100 mL of a ferric chloride solution.Th...

    Text Solution

    |

  20. 0.4 g of polybasic acid HnA (all the hydrogens are acidic) requries 0....

    Text Solution

    |