Home
Class 11
CHEMISTRY
The activation energy of H(2)+I(2) hAr...

The activation energy of
`H_(2)+I_(2) hArr 2HI(g)` in equilibrium for the forward reaction is `167 kJ mol^(-1)` whereas for the reverse reaction is `180 kJ mol^(-1)`. The presence of catalyst lowers the activation energy by `80 kJ mol^(-1)`. Assuming that the reactions are made at `27^(@)C` and the frequency factor for forwatd and backward reactions are `4xx10^(-4)` and `2xx10^(-3)` respectively, calculate `K_(c)`.

Text Solution

Verified by Experts

`36.8`,
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL EQUILIBRIUM

    P BAHADUR|Exercise Statement:Explanation|13 Videos

  • CHEMICAL BONDING

    P BAHADUR|Exercise Exercise 7|11 Videos

  • GASEOUS STATE

    P BAHADUR|Exercise Exercise -9|1 Videos

Similar Questions

Explore conceptually related problems

The activation energy of H_(2)+I_(2) hArr 2HI in equilibrium for the forward reaction is 167 kJ mol^(-1) whereas for the reverse reaction is 180 kJ mol^(-1) . The presence if catalyst lowers the activation energy by 80 kJ mol^(-1) . Assuming that the reaction are made at 27^(@)C and the frequency factorr for the forward and backward reactions are 6xx10^(-4) and 3xx10^(-3) , respectively, calculate K_(c ) .

If the activation enery for the forward reaction is 150 "kJ mol"^(-1) and that of the reverse reaction is 260 "kJ mol"^(-1) . What is the ethalpy change for the reaction ?

The activation energy for the forward reaction X rarr Y is 60 kJ mol^(-1) and Delta H is -20 kJ mol^(-1) . The activation energy for the reverse reaction is

The activation energy of a first order reaction at 300 K is 60 kJ "mol"^(-1) . In the presence of a catalyst, the activation energy is lowered to 50 kJ "mol"^(-1) at the same teperature. How many times the rate of reaction will change ?

In an exothermic reaction A rarr B , the activation energy of the forward reaction is 200 kJ mol^(-1) . The enthalpy of the reaction is 280 kJ mol^(-1) . The activation energy of the reverse reaction B rarr A is

The activation energy of a first order reaction at 300 K is kJ mol^(-1) . In the presence of a catalyst, the activation energy gets lowered to 50kJ mol^(-1) at 300 K . How many times the reaction rate change in the presence of a catalyst at the same temperature ?

P BAHADUR-CHEMICAL EQUILIBRIUM-Exercise
  1. The equilibrium constant K(c) for A(g) hArr B(g) is 1.1. Which gas has...

    Text Solution

    |

  2. For the reaction A+B hArr 3. C at 25^(@)C, a 3 L vessel contains 1, 2,...

    Text Solution

    |

  3. The activation energy of H(2)+I(2) hArr 2HI(g) in equilibrium for th...

    Text Solution

    |

  4. For a gaseous phase reaction A+2B hArr AB(2), K(c)=0.3475 L^(2) "mole"...

    Text Solution

    |

  5. 0.96 g of HI were heated to attain equilibrium 2HIhArrH(2)+I(2). The r...

    Text Solution

    |

  6. The degree of dissociation of HI at a particualr temperature is 0.8. C...

    Text Solution

    |

  7. At 340 K and 1 atm pressure, N(2)O(4) is 66% into NO(2). What volume o...

    Text Solution

    |

  8. N(2)O(4) dissociates as N(2)O(4)hArr2NO(2). At 55^(@)C and one atmospe...

    Text Solution

    |

  9. At 273K and 1 atm ,a moles of N(2)O(4) decomposes to NO(2) according t...

    Text Solution

    |

  10. A mixture of one mole of CO(2) and "mole" of H(2) attains equilibrium ...

    Text Solution

    |

  11. For the equilibrium: CO((g))+H(2)O((g))hArrCO(2(g))+H(2(g)) the stan...

    Text Solution

    |

  12. The equilibrium mixture for 2SO(2)(g) +O(2)(g) hArr 2SO(3)(g) pres...

    Text Solution

    |

  13. At 627^(@)C and 1 atm SO(3) is partially dissociated into SO(2) and O(...

    Text Solution

    |

  14. N(2)O(4) is 25% dissociated at 37^(@)C and 1 atm pressure. Calculate ...

    Text Solution

    |

  15. In a mixture of N(2) and H(2) in the ratio 1:3 at 30 atm and 300^(@)C,...

    Text Solution

    |

  16. The equilibrium concentraion of the reactants and products for the giv...

    Text Solution

    |

  17. 1mol of Cl(2) and 3 mol of PCl(5) are placed in a 100 L vessel heated ...

    Text Solution

    |

  18. A mixture of 2 moles of CH(4) and 34 g of H(2)S was placed in an evacu...

    Text Solution

    |

  19. A graph plotted between log(10) K(c) and 1//T is straight line with in...

    Text Solution

    |

  20. K(p) for the reaction, N(2)+3H(2)hArr2NH(3) is 1.6xx10^(-4)atm^(-2) at...

    Text Solution

    |