Home
Class 12
CHEMISTRY
Calculate the percent dissociation of H(...

Calculate the percent dissociation of `H_(2)S(g)` if `0.1 mol` of `H_(2)S` is kept in `0.4 L` vessel at `1000 K`. For the reaction:
`2H_(2)S(g) hArr 2H_(2)(g)+S_2(g)`
The value of `K_(c )` is `1.0xx10^(-6)`

A

0.05

B

0.02

C

0.06

D

0.08

Text Solution

Verified by Experts

The correct Answer is:
B
`2H_(2)S(g) rarr 2H_(2)(g) + S_(2)(g)`
`k_(c) = [H_(2)]^(2)[S_(2)]/[H_(2)S]^(2) = [x/V]^(2)[x/2V]/[[0.1-x]/v^(2)]`
`k_(c) = x^(3)/(2V(0.1)^(2)) = 1.0 xx 10^(-6)`
`x^(3) = 1.0 xx 10^(-6) xx 2 xx 0.4 xx 0.1 xx 0.1 = 8 xx 10^(-9)`
`x = 2 xx 10^(-3)`
`% dissociation = 2 xx 10^(-3) xx 100/0.1 = 2%`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL EQUILIBRIUM

    VMC MODULES ENGLISH|Exercise JEE Main (Archive)|24 Videos

  • CHEMICAL EQUILIBRIUM

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|28 Videos

  • CHEMICAL EQUILIBRIUM

    VMC MODULES ENGLISH|Exercise Level 1|75 Videos

  • CHEMICAL BONDING-I & II

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|98 Videos

  • CHEMICAL KINETICS

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|52 Videos

Similar Questions

Explore conceptually related problems

Calculate the percent dissociation of H_(2)S(g) if 0.1 mol of H_(2)S is kept in 0.4 L vessel at 1000 K . For the reaction: 2H_(2)S(g) hArr 2H_(2)(g)+S(g) The value of K_(c ) is 1.0xx10^(-6)

Calculate the precentage dissociation of H_(2)S(g) if 0.1 mol of H_(2)S is kept in a 0.5 L vessel at 1000 K . The value of K_(c ) for the reaction 2H_(2)ShArr2H_(2)(g)+S_(2)(g) is 1.0xx10^(-7).

What is % dissociation of H_(2)S if 1 "mole" of H_(2)S is introduced into a 1.10 L vessel at 1000 K ? K_(c) for the reaction 2H_(2)S(g) hArr 2H_(2)(g)+S_(2)(g) is 1xx10^(-6)

What is the unit of K_(p) for the reaction ? CS_(2)(g)+4H_(2)(g)hArrCH_(4)(g)+2H_(2)S(g)

Write the equilibrium constant of the reaction C(s)+H_(2)O(g)hArrCO(g)+H_(2)(g)

The value of K_(p) for the following reaction 2H_(2)S(g)hArr2H_(2)(g) + S_(2)(g) is 1.2xx10^(-2) at 10.6.5^(@)C . The value of K_(c) for this reaction is

If 0.2 mol of H_(2)(g) and 2.0 mol of S(s) are mixed in a 1.0 L vessel at 90^(@)C , the partial pressure of H_(2)S(g) formed according to the reaction H_(2)(g)+S(s)hArr H_(2)S(g),K_(p) at 363K=6.78xx10^(-2) would be

One "mole" of N_(2) is mixed with three moles of H_(2) in a 4L vessel. If 0.25% N_(2) is coverted into NH_(3) by the reaction N_(2)(g)+3H_(2)(g) hArr 2NH_(3)(g) , calculate K_(c) . Also report K_(c) for 1/2 N_(2)(g)+3/2 H_(2)(g) hArr NH_(3)(g)

H_(2)S_((g)) intially at a pressure of 10 atm anda temperature of 800K, dissociates as 2H_(2)S_((g)) hArr 2H_(2) +S_(2(g)) At equilibrium, the partial pressure of S2 vapour is 0.02 atm. Thus, K_(p) is

K_(C) " for " H_(2) (g)+ 1//2 O_(2)(g) rArr H_(2) O (l)at 500 K is 2.4 xx 10^(47), K_(p) of the reaction is .

VMC MODULES ENGLISH-CHEMICAL EQUILIBRIUM-Level 2
  1. At 550 K, the Kc for the following reaction is 10^(4) mol^(-1)L . X(g)...

    Text Solution

    |

  2. For the reaction H(2)(g)+CO(2) (g)hArrCO(g)+H(2)O(g), if the initial ...

    Text Solution

    |

  3. Calculate the percent dissociation of H(2)S(g) if 0.1 mol of H(2)S is ...

    Text Solution

    |

  4. For the reaction equilibrium, N2O4 (g) hArr 2NO2 (g) the concent...

    Text Solution

    |

  5. The equilibrium constant for the reaction N(2)(g)+O(2)(g) hArr 2NO(g...

    Text Solution

    |

  6. Which factor will shift the following equilibrium in forward direction...

    Text Solution

    |

  7. For the reaction, 2NO2 (g) hArr 2NO(g) +O2(g), (Kc= 1.8 xx 10...

    Text Solution

    |

  8. For the following homogeneous gas phase reaction 4NH(3)+5O(2)hArr 4NO+...

    Text Solution

    |

  9. What is the value of k(c) for the reaction at 1473 K I(2)(g) hArr 2I...

    Text Solution

    |

  10. Consider the reaction :- 2CO(g)+2H(2)O((g))hArr2CO(2(g))+2H(2(g))eq....

    Text Solution

    |

  11. 0.1 mole of N(2)O(4)(g) was sealed in a tude under one atmospheric con...

    Text Solution

    |

  12. Dehydration of salts is an important class of heterogeneous reactions....

    Text Solution

    |

  13. Dehydration of salts is an important class of heterogeneous reactions....

    Text Solution

    |

  14. Dehydration of salts is an important class of heterogeneous reactions....

    Text Solution

    |

  15. For an ideal gas reaction 2A+BhArrC+D the value of K(p) will be:

    Text Solution

    |

  16. 40% of a mixture of 0.2 mol of N(2) and 0.6 mol of H(2) reacts to give...

    Text Solution

    |

  17. For a reversible reaction A+BhArrC ((dx)/(dt))=2.0xx10^(3) L mol^(...

    Text Solution

    |

  18. In a 1.0 L aqueous solution when the reaction 2Ag^(o+)(aq)+Cu(s) hAr...

    Text Solution

    |

  19. I(2)(aq)+I^(-)(aq)hArr(aq). We started with 1 mole of I(2) and 0.5 mol...

    Text Solution

    |

  20. A gas X(g) is when dissolved in water heat is evolved. Then solubility...

    Text Solution

    |