Home
Class 11
CHEMISTRY
Calculate the free energy change for the...

Calculate the free energy change for the following reaction at 300 K.
`2CuO_((s)) rarr Cu_(2)O_((s))+(1)/(2)O_(2(g))` Given `Delta H = 145.6 kJ mol^(-1)` and `Delta S = 116.JK^(-1) mol^(-1)`

A

`110.8 kJ mol^(-1)`

B

`221.5kJ mol^(-1)`

C

`55.4 k J mol^(-1)`

D

`145.6 kJ mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A

`Delta G = Delta H - T Delta S`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARAYNA|Exercise Level -V|106 Videos
  • THERMODYNAMICS

    NARAYNA|Exercise Level-VI|150 Videos
  • THERMODYNAMICS

    NARAYNA|Exercise Level -I (H.W)|38 Videos
  • STRUCTURE OF ATOM

    NARAYNA|Exercise EXERCISE - IV EXEMPLAR PROBLEMS|24 Videos

Similar Questions

Explore conceptually related problems

Predict whether the following reaction is possible or not at 300k . 2CuO(s) rarr Cu_(2)O(s) +1//2O_(2)(g) DeltaH =- 144.6 kJ mol^(-1), DeltaS = 0.116 kJ mol^(-1)

Calculate the temperature above which the reaction of lead oxide to lead in the following reaction become spontaneous. PbO(s) + C(s) rarr Pb(s) + CO(g) Given Delta H = 108.4 kJ mol^(-1), Delta S = 190 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) to 2HI(g) DeltaH^(@) = 51.9 kJ "mol"^(-1) Given : S^(@)(H_(2)) = 130.6 J K^(-1) "mol"^(-1) S^(@)(I_(2)) = 116.7 J K^(-1) "mol"^(-1) and S^(@)(HI) = 206.3 J K^(-1) "mol"^(-1) .

Calculated the equilibrium constant for the following reaction at 298K : 2H_(2)O(l) rarr 2H_(2)(g) +O_(2)(g) Delta_(f)G^(Theta) (H_(2)O) =- 237.2 kJ mol^(-1),R = 8.314 J mol^(-1) K^(-1)

Calculate the temperature above which the reduction of lead oxide to lead in the following reaction become spontaneous. PbO(s) + C(s) rightarrow Pb(s) + CO(g) Given Delta H = 118.4 kJ mol^(-1), Delta S = 200 JK^(-1) mol^(-1) .

The temperature at which the given reaction is at equilibrium Ag_(2)O_(s) rightarrow 2Ag(s) + 1/2 O_(2)(g) Delta H = 40.5 kJ mol^(-1) and DeltaS= 0.086 k J mol^(-1) K^(-1)

Calculate the change in entropy for the following reaction 2CO(g) +O_(2)(g) rarr 2CO_(2)(g) Given: S_(CO)^(Theta)(g)=197.6 J K^(-1)mol^(-1) S_(O_(2))^(Theta)(g)=205.03 J K^(-1)mol^(-1) S_(CO_(2))^(Theta)(g)=213.6 J K^(-1)mol^(-1)

NARAYNA-THERMODYNAMICS-Level-II (H.W)
  1. In the following process/es Delta H lt Delta U (A) C(s) + O(2)(g) ra...

    Text Solution

    |

  2. Which of the following will involve evolution of heat ?

    Text Solution

    |

  3. The sublimation energy of I(2) (solid) is 57.3 KJ/mole and enthalpy o...

    Text Solution

    |

  4. Given the enthalpy of formation of CO(2)(g) is -94.0 KJ, of CaO(s) is ...

    Text Solution

    |

  5. C+O(2)rarr CO(2), Delta H = -94 K.cal, CO+(1)/(2)O(2) rarr CO(2), Delt...

    Text Solution

    |

  6. What is the heat of formation of C(6)H(6), given that the heats of com...

    Text Solution

    |

  7. How much energy is released when 6 mole of octane is burnt in ? Given ...

    Text Solution

    |

  8. The heat of combustion of methane is -880 KJ mol^(-1). The quantity of...

    Text Solution

    |

  9. When 6g carbon is burnt in a sufficient amount of oxygen, the heat evo...

    Text Solution

    |

  10. The heats of combustion of C(2)H(4), C(2)H(6) and H(2) gases are -1409...

    Text Solution

    |

  11. The enthalpies of formation of CO and CO(2) are -110.5 KJ mol^(-1) and...

    Text Solution

    |

  12. When 14 grams of ethene is completely burnt in oxygen, the heat evolve...

    Text Solution

    |

  13. H(2)O((g)) rarr H((g))+OH((g))Delta H = x(1) OH((g)) rarr H((g))+O((...

    Text Solution

    |

  14. Heat evolved in the reaction H(2)+Cl(2) rarr 2HCl is 182 kJ Bond ene...

    Text Solution

    |

  15. C(6)H(6) rarr C(6)H(12)Delta H = -204 KJ heat of hydrognentaion of eac...

    Text Solution

    |

  16. The direct conversion of A to B is difficult, hence is carried out by ...

    Text Solution

    |

  17. CaCO(3(s)) rarr CaO((s))+CO(2(g))Delta H = +180 KJ If entropies of lim...

    Text Solution

    |

  18. In which of the following reactions the entropy change is positive ?

    Text Solution

    |

  19. Calculate the free energy change for the following reaction at 300 K. ...

    Text Solution

    |

  20. For the reduction of lead oxide by coke (PbO+C rarr Pb+CO), Delta H an...

    Text Solution

    |