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 ENGLISH|Exercise A.L.P|39 Videos

  • SOLID STATE

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

Similar Questions

Explore conceptually related problems

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)

Which of the following expresison is correct for first order reaction ( c_(0) refers to initial concentration of reactant)

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 ?

Consider the following plots of rate constant versus (1)/(T) for four different reactions. Which of the following orders is correct for the activation energies of these reactions ?

Consider the following plots of rate constant versus (1)/(T) for four different reactions. Which of the following orders is correct for the activation energies of these reactions?

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

A : The rate constant of zero order reaction is equal to rate of reaction. R : t_(1//2) for zero order reaction is directly proportional to initial concentration.

The rate for a first order reaction is 0.6932 xx 10^(-2) mol L^(-1) "min"^(-1) and the initial concentration of the reactants is 1M , T_(1//2) is equal to

The rate for a first order reaction is 0.6932 xx 10^(-2) mol L^(-1) "min"^(-1) and the initial concentration of the reactants is 1M , T_(1//2) is equal to

IF the t_(1//2) for a first order reaction 0.4 min, the time of or 99.9% completion of the reaction is ............min.

RESONANCE ENGLISH-RANK BOOSTER-All Questions
  1. Elements having complete filled outermost s and p orbital are known as...

    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. Decomposition of 3A(g)to2B(g)+2C(g) follows first order kinetics.Initi...

    Text Solution

    |

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

    Text Solution

    |

  6. Statement-1: For A+2BtoC(rate =K[A]^(1)[B]^(0)), the half life time of...

    Text Solution

    |

  7. For I^(st) order decomposition of SO2Cl2(g), SO2Cl2(g)toSO2(g)+Cl2(g...

    Text Solution

    |

  8. A mixture of NO2 and N2O4 has a vapour density of 38.3 at 300K. What i...

    Text Solution

    |

  9. At N.T.P the volume of a gas is found to be 270mL. What will be the vo...

    Text Solution

    |

  10. The initial rate of zero order reaction of the gaseous equation A(g)to...

    Text Solution

    |

  11. The variation of concentration of 'A' with time in two experiments sta...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. At N.T.P the volume of a gas is found to be 237mL. What will be the vo...

    Text Solution

    |

  16. At N.T.P the volume of a gas is found to be 250mL. What will be the vo...

    Text Solution

    |

  17. At N.T.P the volume of a gas is found to be 150mL. What will be the vo...

    Text Solution

    |

  18. For a hypotherical elementary reaction where k1/k2=1/2 Initailly on...

    Text Solution

    |

  19. For a hypotherical elementary reaction where k1/k2=1/2 Initailly on...

    Text Solution

    |

  20. For a hypotherical elementary reaction where k1/k2=1/2 Initailly on...

    Text Solution

    |