Home
Class 11
CHEMISTRY
For the reaction, A(g)+B(g) rarr C(g)+...

For the reaction,
`A(g)+B(g) rarr C(g)+D(g), DeltaH^(@)` and `DeltaS^(@)`
are respectively,
`-29.8 kJ mol^(-1)` and `-0.100 kJ K^(-1) mol^(-1)` at 298 K
The equilibrium constant for the reaction at 298 K is :

A

1

B

10

C

`1.0xx10^(-10)`

D

`1.0xx10^(10)`

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaG^(@)=DeltaH^(@)-T. DeltaS^(@)`
`=-29.8+298xx(0.1)`
`=-29.8 + 29.8`
`:' Delta G^(@)=0`
apply relation between
`DeltaG^(@)=-RT ln K_(eq)`
`:. K_(eq) = 1`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARAYNA|Exercise Level-IV|27 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Level -I (H.W)|38 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Level -II (C.W)|41 Videos

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EXERCISE - IV EXEMPLAR PROBLEMS|24 Videos

Similar Questions

Explore conceptually related problems

For a reaction, DeltaH = 9.08 kJ mol^-1 and DeltaS =35.7 J K^-1 mol^-1 at 298 K. Which of the following is CORRECT for the reaction at 298 K?

For the reaction at A(g) rarr B(g) + E(g), DeltaH^(@) = -30 KJ mol^(-1) , the decrease in standard entropy is 0.1 KJK^(-1)mol^(-1) .The equilibrium constant K for the reaction is ________.

For the reaction at 298 K A(g) + B(g) iff C(g)+ D(g) DeltaH^(@) = -29.8 Kcal, DeltaS^(@) = - 0.1 Kcal //K Calculate DeltaG^(@) and K.

DeltaH^(Theta) and DeltaS^(Theta) for the reaction: Br_(2)(l) +CI_(2)(g) hArr 2BrCI(g) at 298K are 29.3 kJ mol^(-1) and 104.1 J K^(-1) mol^(-1) , respectively. Calculate the equilibrium constant for the reaction.

For the reaction at 298 K A(g) + B(g) hArr C(g) + D(g) If DeltaH^(@) =-29.8 Kcal and DeltaS^(@) Kcal K^(-1) then calculate reaction constant (k)

For the reaction A(g) +B_2(g)rarr AB_2(g) , DeltaS=110JK^(-1) mol^(-1) , DeltaH=55KJ mol respectively Reaction will be spontanuos at

For the reaction at 300K A(g) hArr V(g)+S(g) Delta_(r) H^(@)=-30kJ //mol , Delta_(r)S^(@)=-0.1Kj.k^(-1).mol^(-1) What is the value of equilibrium constant ?

NARAYNA-THERMODYNAMICS-Level -III
  1. The molar heat capacity (C(P)) of CD(2)O is 10 cals at 1000 K. The cha...

    Text Solution

    |

  2. At 60^(@)C, dinitrogen tetroxide is 50 per cent dissociated. Calculate...

    Text Solution

    |

  3. For a spontaneous reaction the DeltaG, equilibrium constant (K) and E(...

    Text Solution

    |

  4. Identify the correct statement regarding a spontaneous process.

    Text Solution

    |

  5. The standard Gibb's energy change for the formation of propane. C(3)H(...

    Text Solution

    |

  6. Which of the following expression defines the physical significance of...

    Text Solution

    |

  7. The incorrect expression among the following is

    Text Solution

    |

  8. For a particular reversible reaciton at temperature T, DeltaH and Delt...

    Text Solution

    |

  9. In a fuel cell methanol is used as fuel and oxygen gas is used as an o...

    Text Solution

    |

  10. On the basis of the following thermochemical data : (Delta(f)G^(@)H((a...

    Text Solution

    |

  11. In view of the signs of Delta(r)G^(0) for the following reactions Pb...

    Text Solution

    |

  12. The value of enthalpy change (DeltaH) for the reaction C(2)H(5)OH (l...

    Text Solution

    |

  13. Consider the reaction, 4NO(2)(g)+O(2)(g)rarr2N(2)O(5)(g),Delta(r )H=...

    Text Solution

    |

  14. For the complete combustion of ethanol, C(2)H(5)OH(l)+3O(2)(g)rarr2CO(...

    Text Solution

    |

  15. The standed free energy of fromation of NO(g) is 86.6 kj/ mol at 298...

    Text Solution

    |

  16. If 100 mole of H(2)O(2) decompose at 1 bar and 300 K, the work done (k...

    Text Solution

    |

  17. For the reaction, A(g)+B(g) rarr C(g)+D(g), DeltaH^(@) and DeltaS^(@...

    Text Solution

    |

  18. A reaction at 1 bar is non-spontaneous at low temperature but becomes ...

    Text Solution

    |

  19. one mole of an ideal gas at 300k in thermal contact with surroundings ...

    Text Solution

    |

  20. The enthalpies of combustion of carbon and carbon monoxide are -393.5 ...

    Text Solution

    |