Home
Class 12
CHEMISTRY
The value of log(10)K for a reaction A h...

The value of `log_(10)K` for a reaction `A hArr B` is (Given: `Delta_(f)H_(298K)^(Theta) =- 54.07 kJ mol^(-1)`,
`Delta_(r)S_(298K)^(Theta) =10 JK^(=1) mol^(-1)`, and `R = 8.314 J K^(-1) mol^(-1)`

A

5

B

10

C

95

D

100

Text Solution

Verified by Experts

The correct Answer is:
b
`DeltaG^(@) = DeltaH^(@) - TDeltaS^(@), DeltaG^(@) 2.303 RT log_(10)k`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    VMC MODULES ENGLISH|Exercise JEE (MAIN ARCHIVE)|32 Videos

  • THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|31 Videos

  • THERMODYNAMICS & THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise Impeccable|48 Videos

Similar Questions

Explore conceptually related problems

The value of 1og_(10) K for a reaction AhArrB is: (Given, Delta_(r)H_(298K)^(@)=-54.07kJ" "mol^(-1),Delta_(r)S_(298K)^(@)=10JK^(-1)" "mol^(-1) and R=8.314JK^(-1) "mol^(-1),2.303xx8.314xx298=5705 )

The value of log_(10)K for the reaction : A harr B , If Delta H^(@) = - 55.07 kj "mole"^(-1) at 298K. Delta S^(@) = 10 jK^(-1) "mole"^(-1) at 298 K , R = 8.314 jK^(-1) "mole"^(-1)

For a reversible reaction A hArr B . Find (log_(10)K)/(10) at 2727^(@) C temperature Given Delta_(r)H^(0) = - 54.07 kJ mol^(-1) Delta_(r)S^(0) = 10 JK^(-1) R = 8.314 JK^(-1) mol^(-1)

Calculate equilibrium constant for the reaction: 2SO_(2)(g) +O_(2)(g) hArr 2SO_(3)(g) at 25^(@)C Given: Delta_(f)G^(Theta) SO_(3)(g) = - 371.1 kJ mol^(-1) , Delta_(f)G^(Theta)SO_(2)(g) =- 300.2 kJ mol^(-1) and R = 8.31 J K^(-1) mol^(-1)

Calculate the value of equilibrium constant, K for the following reaction at 400 K. 2NOCl(g) hArr 2NO (g) + Cl_2(g) DeltaH^@ = 80.0 kJ mol^(-1), DeltaS^@ = 120 KJ^(-1) mol^(-1) at 400 K, R = 8.31 JK^(-1) mol^(-1) .

Calculate the standard free energy change for the reaction: H_(2)(g) +I_(2)(g) rarr 2HI(g), DeltaH^(Theta) = 51.9 kJ mol^(-1) Given: S^(Theta) (H_(2)) = 130.6 J K^(-1) mol^(-1) , S^(Theta) (I_(2)) = 116.7 J K^(-1) mol^(-1) and S^(Theta) (HI) = 206.8 J K^(-1) mol^(-1) .

Calculate the standard free energy change for the reaction: H_(2)(g) +I_(2)(g) rarr 2HI(g), DeltaH^(Theta) = 51.9 kJ mol^(-1) Given: S^(Theta) (H_(2)) = 130.6 J K^(-1) mol^(-1) , S^(Theta) (I_(2)) = 116.7 J K^(-1) mol^(-1) and S^(Theta) (HI) =- 206.8 J K^(-1) mol^(-1) .

Using the following data, calculate the value of equilibrium constant for the following reaction at 298K underset("Acetylene")(3HC-=CH)hArr underset("Benzene")(C_(6)H_(6)(g)) Assuming ideal behaviour Delta_(f)G^(Theta) (HC-= CH) = 2.09 xx 10^(5) J mol^(-1) Delta_(f)G^(Theta) (C_(6)H_(6)) = 1.24 xx 10^(5) J mol^(-1) , R = 8.314 J K^(-1) mol^(-1) Can the reaction be recommended for the synthesis of benzene?

Calculate the entropy change for the following reaction H_(2)(g) +CI_(2)(g) rarr 2HCI (g) at 298 K Given S^(Theta)H_(2) = 131 J K^(-1) mol^(-1), S^(Theta)CI_(2) = 233 J K^(-1) mol^(-1) , and S^(Theta) HCI = 187 J K^(-1) mol^(-1)

Calculate the entropy change for the following reaction H_(2)(g) +CI_(2)(g) rarr 2HCI (g) at 298 K Given S^(Theta)H_(2) = 131 J K^(-1) mol^(-1), S^(Theta)CI_(2) = 233 J K^(-1) mol^(-1) , and S^(Theta) HCI = 187 J K^(-1) mol^(-1)

VMC MODULES ENGLISH-THERMODYNAMICS-JEE ADVANCED (ARCHIVE)
  1. The direct conversion of A to B is difficult hence it is carried out b...

    Text Solution

    |

  2. N(2)+3H(2) hArr 2NH(3) Which of the following statements is correct ...

    Text Solution

    |

  3. The value of log(10)K for a reaction A hArr B is (Given: Delta(f)H(298...

    Text Solution

    |

  4. For the process H(2)O(l) (1 "bar", 373 K) rarr H(2)O(g) (1"bar", 373 K...

    Text Solution

    |

  5. Assertion (A): For every chemical reaction at equilibrium, standard Gi...

    Text Solution

    |

  6. Assertion (A) : There is a natural asymmetry between converting work t...

    Text Solution

    |

  7. Among the following the state function(s) is (are):

    Text Solution

    |

  8. One mole of an ideal gas is taken from a to b along two paths denoted ...

    Text Solution

    |

  9. To an evacuated vessel with movable piston under external pressure of ...

    Text Solution

    |

  10. Match the transformation in Column I with appropriate option in Column...

    Text Solution

    |

  11. Match the thermodynamic processes given under column I with the expres...

    Text Solution

    |

  12. For an ideal gas, consider only P-V work in going from an initial stat...

    Text Solution

    |

  13. The reversible expansion of an ideal gas under adiabatic and isotherma...

    Text Solution

    |

  14. A fixed mass ‘m’ of a gas is subjected to transformation of states fro...

    Text Solution

    |

  15. The pair of isochoric among the transformation of state is :

    Text Solution

    |

  16. An ideal gas in a thermally insulated vessel at internal pressure =P(1...

    Text Solution

    |

  17. For the process, H(2)O(l) to H(2)O(g)

    Text Solution

    |

  18. Thermal decomposition of gaseous X(2) to gaseous X at 298K takes place...

    Text Solution

    |

  19. Thermal decomposition of gaseous X(2) to gaseous X at 298 K takes plac...

    Text Solution

    |

  20. The standard state Gibbs free energies of formation of ) C(graphite an...

    Text Solution

    |