Home
Class 11
CHEMISTRY
A change in the free energy of a system ...

A change in the free energy of a system at constant temperature and pressure will be:
`Delta_(sys)G = Delta_(sys)H -T Delta_(sys)S`
At constant temperature and pressure
`Delta_(sys) G lt 0` (spontaneous)
`Delta_(sys)G = 0` (equilibrium)
`Delta_(sys)G gt 0` (non-spontaneous)
For a system in equilibrium, `DeltaG = 0`, under conditions of constant

A

temperature and pressure

B

temperature and volume

C

energy and volume

D

pressure and volume

Text Solution

Verified by Experts

`(DeltaG)_(T.P.)=0`, at equilibrium state.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL EQUILIBRIUM

    P BAHADUR|Exercise Integer|12 Videos
  • CHEMICAL EQUILIBRIUM

    P BAHADUR|Exercise Comprehension|22 Videos
  • CHEMICAL BONDING

    P BAHADUR|Exercise Exercise 7|11 Videos
  • GASEOUS STATE

    P BAHADUR|Exercise Exercise -9|1 Videos

Similar Questions

Explore conceptually related problems

A change in the free energy of a system at constant temperature and pressure will be: Delta_(sys)G = Delta_(sys)H -T Delta_(sys)S At constant temperature and pressure Delta_(sys) G lt 0 (spontaneous) Delta_(sys)G = 0 (equilibrium) Delta_(sys)G gt 0 (non-spontaneous) For a spontaneous reaction DeltaG , equilibrium K and E_(cell)^(Theta) will be, respectively

A change in the free energy of a system at constant temperature and pressure will be: Delta_(sys)G = Delta_(sys)H -T Delta_(sys)S At constant temperature and pressure Delta_(sys) G lt 0 (spontaneous) Delta_(sys)G = 0 (equilibrium) Delta_(sys)G gt 0 (non-spontaneous) If both DeltaH and Deltas are negative, the reaction will be spontaneous

A change in the free energy of a system at constant temperature and pressure will be: Delta_(sys)G = Delta_(sys)H -T Delta_(sys)S At constant temperature and pressure Delta_(sys) G lt 0 (spontaneous) Delta_(sys)G = 0 (equilibrium) Delta_(sys)G gt 0 (non-spontaneous) The free enegry for a reaction having DeltaH = 31400 cal, DeltaS = 32 cal K^(-1) mol^(-1) at 1000^(@)C is

The changes in gibbs energy (Delta G) of a system for a process at constant temperature and pressure is

The change in Gibbs free energy of the system alone provides a criterion for the spontaneity of a process at constant temperature and pressure. A change in the free energy of a system at constant temperature and pressure will be : DeltaG_("system")=DeltaH_("system")-T DeltaS_(system") For a system in equilibrium, DeltaG=0 , under conditions of contant....

DeltaG is a thermodynamic prop erty the decrease in which value is the measure of useful work done at constant temperature and pressure: DeltaG_("system") lt 0 (spon tan eous) , DeltaG_("system")=0 (equilibrium), DeltaG_("system") gt 0 (non- spon tan eous), Free energy is related to the equilibrium constant, as DeltaG^(@)=-2.0303 RT log_(10) K_(c) For a reaction to be spontaneous at all temperatures:

Identify the correct statement for change of Gibbs energy for a system (Delta_(sys)G) at constant temperature and pressure:

P BAHADUR-CHEMICAL EQUILIBRIUM-Exercise
  1. A change in the free energy of a system at constant temperature and pr...

    Text Solution

    |

  2. Write equilibrium constant for the each : (a) N(2)O(4(g))hArr2NO(2(g...

    Text Solution

    |

  3. The equilibrium constant expression for a gas reaction is : K(c) = (...

    Text Solution

    |

  4. The equilibrium constant of the reaction , SO(3(g))hArrSO(2(g))+(1)/...

    Text Solution

    |

  5. Calculate the equilibrium constant for the reaction, H(2(g))+CO(2(g)...

    Text Solution

    |

  6. For the reactions, N(2(g))+3H(2(g))hArr2NH(3(g)). At 400 K, K(p)=41 at...

    Text Solution

    |

  7. Find out the value of K(c) for each of the following equilibrium from ...

    Text Solution

    |

  8. The rate of reversible reaction (change in concentration per second): ...

    Text Solution

    |

  9. Write a stoichiometric equation for the reaction between A(2) and C wh...

    Text Solution

    |

  10. In which case does the reaction go farthest to completion: K=1 K, K=10...

    Text Solution

    |

  11. The equilibrium constant K(c) for A((g))hArrB((g)) is 1.1. Which gas h...

    Text Solution

    |

  12. Calculate the value of equilibrium constant K(p) for the reaction: O...

    Text Solution

    |

  13. Equilibrium constant, K(c) for the reaction, N(2(g))+3H(2(g))hArr2NH...

    Text Solution

    |

  14. The ester , ethyl acetate is formed by the reaction of ethanol and ace...

    Text Solution

    |

  15. Consider the following equations for cell reaction: A+BhArrC+D ….(1)...

    Text Solution

    |

  16. For the gasesous reaction, 2NO(2)hArrN(2)O(4), calculate DeltaG^(@) an...

    Text Solution

    |

  17. DeltaG^(@) for (1)/(2)N(2)+(3)/(2)H(2)hArrNH(3) is -16.5 kJ mol^(-1) a...

    Text Solution

    |

  18. Calculate the values of DeltaE^(@) and DeltaH^(@) for the reaction: ...

    Text Solution

    |

  19. For the reaction at 298 K: A((g))+B((g))hArrD((g))+C((g)) DeltaH^(...

    Text Solution

    |

  20. Calculate the value of equilibrium constant for the reaction: A((g))...

    Text Solution

    |

  21. Calculate the pressure for CO(2) at equilibrium if DeltaG^(@)=31.1kcal...

    Text Solution

    |