Home
Class 11
CHEMISTRY
In the reaction A^(o+) +B rarr A +B^(o+)...

In the reaction `A^(o+) +B rarr A +B^(o+)`, there is no entropy changes. If enthalpy change is `20 kJ` of `A^(o+)`, calculate `DeltaG` for the reaction.

Text Solution

Verified by Experts

For the given reaction,
`DeltaH = 22 kJ, DeltaS = 0`
`:.` From, `DeltaG = DeltaH - T DeltaS`
`DeltaG = 20 - T xx 0 = 20 kJ mol^(-1)`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Ex 6.1|26 Videos

  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Ex 6.2|27 Videos

  • STOICHIOMETRY

    CENGAGE CHEMISTRY|Exercise Archives Subjective|33 Videos

Similar Questions

Explore conceptually related problems

In the reaction A^(+)+BtoA+B^(+) there is no entropy change. If enthalpy change is 22 kJ of A^(+) , calculate DeltaG for the reaction.

A reaction A +B rarr C+D +q is found to have a positive entropy change, the reaction will be:

In a reaction P+Q rarr R+S , there is no change in entropy, Enthalpy change for the reaction (DeltaH) is "12 kJ mol"^(-1) . Under what conditions, reaction will have negative value of free energy change?

The emf of the cell reaction Zn(s) +Cu^(2+) (aq) rarr Zn^(2+) (aQ) +Cu(s) is 1.1V . Calculate the free enegry change for the reaction. If the enthalpy of the reaction is -216.7 kJ mol^(-1) , calculate the entropy change for the reaction.

For a given chemical reaction A to B at 300 K the free energy change is -49.4 kJ mol ^(-1) and the enthalpy of reaction is 51.4 kJ mol ^(-1). The entropy change of the reaction is____________ JK ^(-1) mol ^(-1).

For the reaction, SOCI_(2) +H_(2)O rarr SO_(2)+2HCI the enthalpy of reaction is 40.0 kJ and the entropy of reaction is 336 J K^(-1) . Calculate DeltaG at 300K and predict the neture of the reaction.

The standard free energy change for a reaction is -213.3 KJ mol^(-1) "at" 25^(@)C . If the enthalpy change of the reaction is -217.77 KJ "mole"^(-1) . Calculate the magnitude of entropy change for the reaction in Joule "mole"^(-1)

CENGAGE CHEMISTRY-THERMODYNAMICS-Archives (Subjective)
  1. In the reaction A^(o+) +B rarr A +B^(o+), there is no entropy changes....

    Text Solution

    |

  2. The enthalpies for the following reactions (DeltaH^(Theta)) at 25^(@)C...

    Text Solution

    |

  3. The standared enthalpies of formation at 298K for C C1(g), H(2)O(g), C...

    Text Solution

    |

  4. Given that: i. C(s) + O(2)(g) rarr CO(2)(g) , DeltaH =- 94.05 kcal ...

    Text Solution

    |

  5. The following statements is true only under some specific conditions. ...

    Text Solution

    |

  6. The bond dissociation energies of gaseous H(2),C1(2), and HC1 are 100,...

    Text Solution

    |

  7. The standard molar heats of formation of ethane, carbon dioxide, and l...

    Text Solution

    |

  8. An intimate mixture of ferric oxide and aluminium is used as solid fue...

    Text Solution

    |

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

    Text Solution

    |

  10. Using the data ( all vaues in kcal mol^(-1) at 25^(@)C) given below, c...

    Text Solution

    |

  11. Determine enthalpy change for, C(3)H(8(g))+H(2(g))rarr C(2)H(6(g))+C...

    Text Solution

    |

  12. Compute the heat of formation of liquie methyl alcohol is kilojoule pe...

    Text Solution

    |

  13. From the following data, calculate the enthalpy change for the combust...

    Text Solution

    |

  14. The standard heat of formation values of SF(6)(g), S(g), and F(g) are ...

    Text Solution

    |

  15. Show that the reaction CO(g) +(1//2)O(2)(g) rarr CO(2)(g) at 300K ...

    Text Solution

    |

  16. A sample of argon gas at 1atm pressure and 27^(@)C expands reversibly ...

    Text Solution

    |

  17. Diborane is a potential rocket fuel that undergoes combustion accordin...

    Text Solution

    |

  18. The standard potential of the following cell is 0.23V at 15^(@)C and 0...

    Text Solution

    |

  19. When 1pentyne (A) is treated with 4N alcoholic KOH at 175^(@)C, it is ...

    Text Solution

    |

  20. Two moles of a perfect gas undergo the following processes: a. A rev...

    Text Solution

    |

  21. C(v) values of He is always (3R)/(2) but C(v) values of H(2) is (3R)/(...

    Text Solution

    |