Home
Class 11
CHEMISTRY
The temperature in K at which DeltaG=0 f...

The temperature in K at which `DeltaG=0` for a given reaction with `DeltaH=-20.5 kJ mol^(-1)` and `DeltaS=-50.0 JK^(-1) mol^(-1)` is

A

`-410`

B

`410`

C

`2.44`

D

`-2.44`

Text Solution

Verified by Experts

The correct Answer is:
B

`DeltaG=DeltaH - T Delta S`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARAYNA|Exercise Level -III|64 Videos
  • THERMODYNAMICS

    NARAYNA|Exercise Level-IV|27 Videos
  • THERMODYNAMICS

    NARAYNA|Exercise Level -I (C.W)|62 Videos
  • STRUCTURE OF ATOM

    NARAYNA|Exercise EXERCISE - IV EXEMPLAR PROBLEMS|24 Videos

Similar Questions

Explore conceptually related problems

Calculate the value of DeltaG at 700K for the reaction, nX to mB . Given that value of DeltaH=-113kJ mol^(-1) and DeltaS=-145JK^(-1)mol^(-1).

The values of DeltaH and DeltaS for two reactions are given below: Reaction A : DeltaH =- 10.0 xx 10^(3)J mol^(-1) DeltaS = +30 J K^(-1) mol^(-1) Reaction B: DeltaH =- 11.0 xx 10^(3)J mol^(-1) DeltaS =- 100J K^(-1) mol^(-1) Decide whether these reactions are spontaneous or not at 300K .

Calculate the temperature at which DeltaG=-5.2 kJ mol^-1 ,DeltaH=145.6kJ mol^-1 and DeltaS=216 JK^-1 mol^-1 for a chemical reaction

The following data is known about the melting of KCl: DeltaH=7.25kJ" "mol^(1) and DeltaS=+0.007JK^(-1)" "mol^(-1) Calcualt eits melting point.

Calculate the temperature, at which the reaction given below is at equilibrium, Ag_(2)O(s) to 1/2 O_(2)(g) Given, DeltaH = 30.5 kJ mol^(-1) and DeltaS = 0.066 kJK^(-1)"mol"^(-1)

At what temperature, DeltaG of a reaction is equal to -5.2 kJ mol^(-1) ? DeltaH and DeltaS of the reaction are respectively 145.6 kJ mol^(-1) and 116 JK^(-1) .

For a given reaction, DeltaH=35.5 KJ "mol"^(-1) and DeltaS=83.6 JK^(-1) "mol"^(-1) . The reaction is spontaneous at: (Assume that DeltaH and deltaS so not vary with temperature)

NARAYNA-THERMODYNAMICS-Level -II (C.W)
  1. The stadard heats of formation of NO(2)(g) and N(2)O(4) (g) are 33.5 a...

    Text Solution

    |

  2. The enthalpies of formation of CO(2(g)), H(2)O((l)) and C(2)H(4(g)) ar...

    Text Solution

    |

  3. If H(2)S+3/2 O(2) rarr H(2)O+SO(2), DeltaH=-136.7 Kcal H(2)+1/2 O(...

    Text Solution

    |

  4. A+3/2 O(2) rarr AO(3) = 3x KJ AO(2)+1/2 O(2) rarr AO(3) = 2y kJ Th...

    Text Solution

    |

  5. The enthalpy change during the formation of 24.95 grams of hydrated co...

    Text Solution

    |

  6. The molar enthalpies of combustion of C(2)H(2)(g), C("graphite") and H...

    Text Solution

    |

  7. For a given reaction, C(7)H(8(l))+9I(2) (g) rarr 7CO(2)(g) +4H(2)O(l...

    Text Solution

    |

  8. Hess's law states that

    Text Solution

    |

  9. Heat of reaction (DeltaH) is given by

    Text Solution

    |

  10. The values of the combustion of graphite and H(2) are -395 and -269 kJ...

    Text Solution

    |

  11. The heat of combustion of sucrose C(12) H(22) O(11)(s) at constant vol...

    Text Solution

    |

  12. At 298 K, the heat of solution of MgSO(4) (s) is -91.21 kJ mol^(-1) an...

    Text Solution

    |

  13. The entropy change for cooling 1.6 g of an organic compound (mol. Wt. ...

    Text Solution

    |

  14. The entropy change during heating of 50 g water (sp. Heat =4200 J kg^(...

    Text Solution

    |

  15. Standard molar entropies of Mg((s)), C((s)), MgO((s)) & CO((g)) respec...

    Text Solution

    |

  16. The value DeltaS for the process H(2)O(s) rarr H(2)O(l) at 1 atm pre...

    Text Solution

    |

  17. On the basis of information available from the reaction (4)/(3)Al+O(...

    Text Solution

    |

  18. Consider the following reactions at 1000^(@)C. (A) Zn((s))+1/2 O(2(g...

    Text Solution

    |

  19. Acetic acid forms dimer in vapour phase. The dimer is held together by...

    Text Solution

    |

  20. The temperature in K at which DeltaG=0 for a given reaction with Delta...

    Text Solution

    |