Home
Class 11
CHEMISTRY
In a reaction A+B hArr C+D , the initial...

In a reaction `A+B hArr C+D` , the initial concentrations of A and B were 0.9 mol `dm^(-3)` each. At equilibrim the concentration of D was found to be 0.6 mol `dm^(-3)`. What is the value of equilibruim constant for the reaction ?

A

8

B

4

C

9

D

3

Text Solution

Verified by Experts

The correct Answer is:
B
`{:(,A,+,B,hArr, C,+,D),("Initial conc.",0.9M,,0.9M,,-,,-),("At equilibrium",0.3M,,0.3M,,0.6M,,0.6M):}`
`K=([C][D])/([A][B])=(0.6xx0.6)/(0.3xx0.3)=4`
Promotional Banner

Topper's Solved these Questions

  • PHYSICAL AND CHEMICAL EQUILIBRIA

    DINESH PUBLICATION|Exercise SELECTED STRAIGHT OBJECTIVE TYPE MCQs|4 Videos

  • PHYSICAL AND CHEMICAL EQUILIBRIA

    DINESH PUBLICATION|Exercise MCQs with only one correct answer|24 Videos

  • PHYSICAL AND CHEMICAL EQUILIBRIA

    DINESH PUBLICATION|Exercise Multiple CHOICE QUESTIONS [Based on Numerical Problems]|62 Videos

  • P BLOCK ELEMENTS (GROUP 13 AND 14 )

    DINESH PUBLICATION|Exercise Straight obj.|17 Videos

  • RATES OF REACTIONS AND CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise Ultimate Preparatory Package|29 Videos

Similar Questions

Explore conceptually related problems

For the reaction A+B hArr C+D , the initial concentrations of A and B are equal. The equilibrium concentration of C is two times the equilibrium concentration of A. The value of equilibrium constant is ………..

For the reaction a+bhArrc+d , initially concentrations of a and b are equal and at equilibrium the concentration of will be twice of that of a. What will be equilibrium constant for the reaction ?

In the reaction, A + B hArr2C , at equilibrium, the concentration of A and B is 0.20 mol L^(-1) each and that of C was found to be 0.60 mol L^(-1) . The equilibrium constant of the reaction is

In a chemical reaction , A+2Boverset(K)hArr2c+D, the initial concentration of B was 1.5 times of the concentrations of A , but the equilibrium concentrations of A and B were found to be equal . The equilibrium constant (K) for the aforesaid chemical reaction is :

The reaction, 2A(g) + B(g)hArr3C(g) + D(g) is begun with the concentration of A and B both at an intial value of 1.00 M. When equilibrium is reached, the concentration of D is measured and found to be 0.25 M. The value for the equilibrium constant for this reaction is given by the expression:

DINESH PUBLICATION-PHYSICAL AND CHEMICAL EQUILIBRIA-REVISION QUESTION FROM COMPETITIVE EXAMS
  1. In which case K(p) is less than K(c) ?

    Text Solution

    |

  2. The reaction 3Fe(s)+4H(2)O hArr Fe(3)O(4)(s) +4H(2)(g) is reversible...

    Text Solution

    |

  3. In a reaction A+B hArr C+D , the initial concentrations of A and B wer...

    Text Solution

    |

  4. At a given temperature, the equilibrium constant for the reactions NO(...

    Text Solution

    |

  5. The yield of NH(3) in the reaction N(2)+3H(2) hArr 2NH(3) , Delta H =-...

    Text Solution

    |

  6. For the reaction PCl(5)(g) hArr PCl(3)(g)+Cl(2)(g) the forward reactio...

    Text Solution

    |

  7. If the equilibrium constant for the reaction 2AB hArr A(2)+B(2) is 49,...

    Text Solution

    |

  8. 4.5 moles each of hydrogen and iodine heated in a sealed 10 litrevesel...

    Text Solution

    |

  9. The equilibrium constant for the reversible reaction N(2)+3H(2) hArr 2...

    Text Solution

    |

  10. On the basis of Le- Chatelier's principle, predict which of the follow...

    Text Solution

    |

  11. If K(1) and K(2) are the equilibrium constants of the equilibria (a) a...

    Text Solution

    |

  12. For the reaction, ZnCO(3)(s) hArr ZnO(s)+CO(2)(g) expression for the p...

    Text Solution

    |

  13. In the reaction N(2)(g)+O(2)(g) hArr 2NO(g), DeltaH= + 180.7kJ. On inc...

    Text Solution

    |

  14. When 3 moles of A and 1 mole of B are mixed in 1 litre vessel, the fol...

    Text Solution

    |

  15. Choose the equilibrium that is not influenced by pressure

    Text Solution

    |

  16. H(2)+I(2) hArr2HI Which one of the following will not affect the rate ...

    Text Solution

    |

  17. In which of the following equilibrium, change in the volume of the sys...

    Text Solution

    |

  18. For the reaction CO(g)+(1)/(2) O(2)(g) hArr CO(2)(g),K(p)//K(c) is

    Text Solution

    |

  19. For the reaction 2HI hArr H(2)+I(2)

    Text Solution

    |

  20. A gas bulb is filled with NO(2) gas and immersed in an ice bath at 0^(...

    Text Solution

    |