Home
Class 12
CHEMISTRY
For the reaction, X(2)O(4)(l)rarr2XO(2...

For the reaction,
`X_(2)O_(4)(l)rarr2XO_(2)(g),DeltaE=2.1Kcal` ,
`DeltaS=20cal//K` at `300K` . Hence `DeltaG` is

A

9.3 kcal

B

`- 9.3 "kcal" `

C

2.7 kcal

D

2.7 kcal

Text Solution

Verified by Experts

The correct Answer is:
D
`Delta h=3.300 "kcal" `
`Delta G = Delta H - T Delta S `
`=3300 - 300 xx 20 =- 2700 cal =-2.7 "kcal" `
Promotional Banner

Topper's Solved these Questions

  • Chemical Thermodynamics & Energetics

    NIKITA PUBLICATION|Exercise QUESTION FROM COMPETITIVE EXAM|35 Videos

  • CHEMICAL KINETICS

    NIKITA PUBLICATION|Exercise MCQs|351 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    NIKITA PUBLICATION|Exercise MCQs|224 Videos

Similar Questions

Explore conceptually related problems

For the reaction: X_(2)O_(4)(l)rarr2XO_(2)(g) DeltaU=2.1 cal , DeltaS =20 "cal" K^(-1) "at" 300 K Hence DeltaG is

For the reaction, X_(2)O_(4)(I) rightarrow 2XO_(2)(g) Delta cup = 2.1 k cal, Delta S = 20 cal K^(-1) at 300 K hence, DeltaG is

For the reaction at 25^(@)C, C_(2)O_(4)(l) rarr 2XO_(2)(g) Delta H =2.1 kcal and DeltaS=20 cal K^(-1) . The reaction would be :

For the reaction :- N_(2)O_(4(g))hArr2NO_(2(g)) DeltaU2.0Kcal,DeltaS=50CalK^(-1)at300K calculate DeltaG ?

For the reaction. A(l)rarr 2B(g) DeltaU="2.1 k Cal, "DeltaS="20 Cal K"^(-1)" at 300K Hence DeltaG" in kcal " is ?

NIKITA PUBLICATION-Chemical Thermodynamics & Energetics-QUESTION FROM COMPETITIVE EXAM
  1. The Gibbs energy for the decomposition of Al(2)O(3) at 500^(@)C is as...

    Text Solution

    |

  2. The entropy change involved in the isothermal reversible expansion of ...

    Text Solution

    |

  3. The incorrect expression among the following is

    Text Solution

    |

  4. In which of the following reactions,standard reaction entropy change(D...

    Text Solution

    |

  5. The enthalpy of fusion of water is 1.435 kcal//"mole". The molar entro...

    Text Solution

    |

  6. Standard enthalpy of vaporisationDeltaV(vap).H^(Theta) for water at 10...

    Text Solution

    |

  7. A piston filled with 0.04 mol of an ideal gas expands reversibly from ...

    Text Solution

    |

  8. At 27^(@)C, one mole of an ideal gas is compressed isothermally and re...

    Text Solution

    |

  9. A piston filled with 0.04 mol of an ideal gas compress reversibly from...

    Text Solution

    |

  10. Pressure-volume (PV) work done by an ideal gaseous system at constant ...

    Text Solution

    |

  11. The change of entropy is defined as

    Text Solution

    |

  12. The condition of spontanity of process is

    Text Solution

    |

  13. Mixing of two different ideal gass under isothermal reversible conditi...

    Text Solution

    |

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

    Text Solution

    |

  15. When 5 litres of a gas mixture of methane and propane is perfectly com...

    Text Solution

    |

  16. Three thermochemical eq^(ns) are given below 1)C("graphite")+O(2(g)...

    Text Solution

    |

  17. The standard Gibbs free energy change (DeltaG^0 )25°C for the dissocit...

    Text Solution

    |

  18. Using the Gibbs energy change, Delta G^(@)=+ 63.3 kJ, for the followin...

    Text Solution

    |

  19. For the reaction, X(2)O(4)(l)rarr2XO(2)(g),DeltaE=2.1Kcal , DeltaS...

    Text Solution

    |

  20. For the process H(2)O(l)toH(2)O(g) at t=100^(@)C and 1 atmosphere pres...

    Text Solution

    |