Home
Class 12
CHEMISTRY
Identify the correct statement for chang...

Identify the correct statement for change of Gibbs free energy for a system `(DeltaG_("system"))` at constant temperature and pressure.

A

If `Delta G_("syste")gt 0`, the process is spontaneous.

B

If `Delta G_("system")=0`, the system has attained equilibrium

C

If `Delta G_("system")=0`, the system is still moving in a particular direction.

D

If `Delta G_("system")lt 0`, the process is not spontaneous.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    ALLEN|Exercise EXERCISE -1B|22 Videos

  • THERMODYNAMICS

    ALLEN|Exercise EXERCISE -2|100 Videos

  • THERMODYNAMICS

    ALLEN|Exercise Questions|46 Videos

  • TEST PAPERS

    ALLEN|Exercise MATHEMATICS|2 Videos

  • Thermodynamics And Thermo Chemistry

    ALLEN|Exercise All Questions|40 Videos

Similar Questions

Explore conceptually related problems

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

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

Identify the correct statement regarding lymphatic system.

Choose the correct statement for an isolated system.

Identify the correct statement with reference to human digestive system

The change in Gibbs free energy of the system along provides a criterion for the spontaneity of a process at constant temperature and pressure. A change in the free energy of a sytem at constant temperature and pressure will be: DeltaG_("system") = DeltaH_("system") - T DeltaS_("system") For a spontaneous reaction DeltaG , equilibrium constant K and E_("cell")^(0) will be respectively:

The change in Gibbs free energy of the system along provides a criterion for the spontaneity of a process at constant temperature and pressure. A change in the free energy of a sytem at constant temperature and pressure will be: DeltaG_("system") = DeltaH_("system") - T DeltaS_("system") The free energy for a reaction having Delta H= 31400 cal, DeltaS= 32 cal K^(-1) mol^(-1) at 1000^(@)C is

In a spontaneous reaction, the free energy of a system :

Predict the change in internal energy for an isolated system at constant volume.

In the following questions , a statement of assertion (A) is followed by a statement of reason (R). Br A : For every chemical reaction at equilibrium, the value of standard Gibbs free energy change is zero. R: At constant temperature and pressure for a reaction that direction is preferred for which Gibbs free energy increases.

ALLEN-THERMODYNAMICS -EXERCISE -1A
  1. The magnitude of enthalpy change for neutralization of the reaction , ...

    Text Solution

    |

  2. Which of the following pairs of a chemical reaction is certain to resu...

    Text Solution

    |

  3. Identify the correct statement for change of Gibbs free energy for a s...

    Text Solution

    |

  4. Assume each reaction is carried out in an open container. For which r...

    Text Solution

    |

  5. The enthalpy and entropy change for the reaction Br(2)(l)+Cl(2)(g)rarr...

    Text Solution

    |

  6. The enthalpy of hydrogenation of cyclohexene is -119.5 kJ mol^(-1). If...

    Text Solution

    |

  7. For the reaction of one mole of zinc dust with one mole of sulphuric a...

    Text Solution

    |

  8. When you make ice cubes, the entropy of water

    Text Solution

    |

  9. For a phase change H(2)O(l) to H(2)O (g)

    Text Solution

    |

  10. For a spontaneous process the correct statement is

    Text Solution

    |

  11. The enthalpy change (Delta H) for the reaction, N(2)(g)+3H(2)(g)to 2NH...

    Text Solution

    |

  12. Consider the following reactions: (a) H(aq)^(+) +OH(aq)^(-) to H(2)O...

    Text Solution

    |

  13. Given that bond energies of H–H and Cl–Cl are 430 kJ mol^(-1) and 240...

    Text Solution

    |

  14. Bond dissociation enthalpy of H(2), Cl(2) and HCl are 434, 242 and 431...

    Text Solution

    |

  15. For the gas phase reaction, PCl(5)(g) hArr PCl(3)(g) + Cl(2)(g) Wh...

    Text Solution

    |

  16. Which of the following are not a constant value between two given ther...

    Text Solution

    |

  17. From the following bond energies: H-H bond energy: 431.37KJmol^(-1) ...

    Text Solution

    |

  18. The values of DeltaH and DeltaS for the reaction, C("graphite")+CO(2...

    Text Solution

    |

  19. For vaporization of water at 1 atmospheric pressure the values of Delt...

    Text Solution

    |

  20. Three moles of an ideal gas expanded spontaneously into vaccum. The wo...

    Text Solution

    |