Home
Class 11
CHEMISTRY
The enthalpy and entropy change for the ...

The enthalpy and entropy change for the reaction,
`Br_(2)(l)+Cl_(2)(g)rarr2BrCl(g)`
are `30KJmol^(-1)` and `105JK^(-1)mol^(-1)` respectively. The temperation at which the raction will be in equilibrium is:

A

`450K`

B

`300K`

C

`285.7K`

D

`272K`

Text Solution

Verified by Experts

The correct Answer is:
D
At equilibrium, Gibbs's free energy change `(DeltaG)` is equal to zero
`DeltaG=DeltaH-TDeltaS`
`0=30xx10^(3)(Jmol^(-1))-Txx(105)KJ^(-1)mol^(-1)`
`:. T=(30xx10^(3)K)/(105)=285.7K`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    A2Z|Exercise AIIMS Questions|29 Videos

  • CHEMICAL THERMODYNAMICS

    A2Z|Exercise Assertion - Reasoning Questions|7 Videos

  • CHEMICAL THERMODYNAMICS

    A2Z|Exercise Section B - Assertion Reasoning|17 Videos

  • CHEMICAL EQUILIBRIUM

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY OF PROPERTIES

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

The enthalpy and entropy change for the reaction Br_(2)(I) + CI_(2)(g) rightarrow 2BrCI(g) are 40 kJ mol^(-1) and 110 JK^(-1) mol ^(-1) repectively. The temperature at which the reaction will be in equilibrium is

The enthalpy and entropy change for the reaction: Br_(2)(l) + Cl_(2)(g) to 2BrCl(g) are 30 kJ mol–1 and 105 JK–1 mol–1 respectively. The temperature at which the reaction will be in equilibrium is:-

The enthalpy and entropy change for the reaction, Br_2(l) + Cl_2(g) - 2BrCl(g) are 7.1 kcal mol^-1 and 25 cal K^-1 mol^-1 respectively. This reaction will be spontaneous at

DeltaH and DeltaS for the reaction Br_(2)(l)+Cl_(2)(g)to2BrCl(g) are 29.37 kJ and 104.7J" "K^(-1) respectively. Above what temperature will this reaction become spontaneous?

Enthalpy change for reaction 1//2H_(2)(g)+1//2Cl_(2)(g)toHCl(g) is called :-

A2Z-CHEMICAL THERMODYNAMICS-AIPMT/ NEET Questions
  1. Which of the following pairs of a chermical reaction is centain to res...

    Text Solution

    |

  2. Identify the correct statement for change of Gibbs energy for a system...

    Text Solution

    |

  3. The enthalpy and entropy change for the reaction, Br(2)(l)+Cl(2)(g)r...

    Text Solution

    |

  4. Assume each reaction is carried out in an open container. For which ...

    Text Solution

    |

  5. The standard ethelpy of combustion at 25^(@)C of hydrogen, cyclohexene...

    Text Solution

    |

  6. The enthalpy of hydrogenation of cyclohexene is -119.5KJ . If resonanc...

    Text Solution

    |

  7. Identify the correct statement regarding a spontaneous process.

    Text Solution

    |

  8. The H-H bond energy is 430KJmol^(-1) and Cl-Cl bond energy is 240KJmol...

    Text Solution

    |

  9. Consider the following reactions: (i) H^(+)(aq)+OH^(-)(aq)rarrH(2)O(...

    Text Solution

    |

  10. Which of the following are not state functions? (I) q+w (II)q (I...

    Text Solution

    |

  11. For the gas phase reaction, PCl(5)(g)rarrPCl(3)(g)+CL(2)(g) Which ...

    Text Solution

    |

  12. Bond dissociation enthalpy of H(2) , Cl(2) and HCl are 434, 242 and 43...

    Text Solution

    |

  13. For the gas phase reaction PCl(5)rarrPCl(3)(g)+Cl(2)(g) which of t...

    Text Solution

    |

  14. At 27^(@)C latent heat of fusion of a compound is 2930mol . Entropy ch...

    Text Solution

    |

  15. The values of DeltaH and DeltaS for the reacrtion, C("graphite")+CO(...

    Text Solution

    |

  16. The energy absorbed by each molecule (A(2)) of a substance is 4.4xx10^...

    Text Solution

    |

  17. From the following bond energies: H--H bond energy: 431.37KJmol^(-1) ...

    Text Solution

    |

  18. Three moles of an ideal gas expanded spotaneously into vacuum. The wor...

    Text Solution

    |

  19. For vaporization of water at 1 atmospheric pressure the values of Delt...

    Text Solution

    |

  20. The following two reactionas are known FeO(3)(s)+3CO(g)rarr2Fe(s)+CO...

    Text Solution

    |