Home
Class 11
CHEMISTRY
A reaction occurs spontaneously if...

A reaction occurs spontaneously if

A

`T Delta S gt Delta H ` and `Delta H` is`+ve` and`Delta S` is -ve

B

`T DeltaS =Delta H ` and both `Delta H` and `DeltaS` are `+ve`

C

`T DeltaS ltDeltaH` and both `DeltaH ` and `DeltaS` are `+ve`

D

`T DeltaS gt Delta H` and both `DeltaH ` and `DeltaS` are `+ve`

Text Solution

Verified by Experts

The correct Answer is:
d
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    PRADEEP|Exercise FILL IN THE BLANKS|31 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise CONCEPTUAL QUESTIONS( I. General Introduction andsome basic terms and concepts)|4 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise ADVANCED PROBLEMS (FOR COMPETITIONS)|20 Videos

  • STRUCTURE OF ATOM

    PRADEEP|Exercise Competition Focus (JEE (Main and Advanced)/Medical Entrance (IX. Assertion And Reason Type Questions (Type II))|12 Videos

Similar Questions

Explore conceptually related problems

A reaction occurs spontaneously in forward direction if

If an endothermic reaction occurs spontaneously at constant T and P , then which of the following is true

If an eddothermic reaction occurs spontaneously at constant temperature and pressure, then which of the following is true?

The enthalpy change for a given reaction at 298 K is -x cal mol^(-1) . If the reaction occurs spontaneously at 298 K , the entropy change at that temperature

For a reaction both DeltaH and DeltaS are positive.Under what conditions does the reaction occur spontaneously?

For a reaction both DeltaH and DeltaS are positive.Under what conditions does the reaction occur spontaneously?

Relate free energy with equillibrium constant. For a reaction both DeltaH and DeltaS are positive.Under what conditions does the reaction occur spontaneously?

PRADEEP-THERMODYNAMICS-TEST YOUR GRIP( MULTIPLE CHOICE QUESTIONS)
  1. One mole of an ideal gas at 300K is expanded isothermally from an init...

    Text Solution

    |

  2. Which of the following are not state functions? (I) q+w (II)q (I...

    Text Solution

    |

  3. Molar heat capacity of aluminium is 25 JK^(-1) mol^(-1).The heat neces...

    Text Solution

    |

  4. Which of the following reactions is defines Delta(f)H^(Theta)?

    Text Solution

    |

  5. The lattice enthalpy and hydration enthalpy of four compounds are give...

    Text Solution

    |

  6. The standard enthalpies of formation of A(NH(3)),B(CO(2)),C(HI) and D(...

    Text Solution

    |

  7. The species which by definition has zero standard molar enthalpy of fo...

    Text Solution

    |

  8. Thermodynamically the most stable form of carbon is

    Text Solution

    |

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

    Text Solution

    |

  10. Given that C + O(2) rightarrow CO(2), Delta H^(@) = - x k J 2CO +O...

    Text Solution

    |

  11. The bond energies of H--H , Br--Br and H--Br are 433,, 192 and 364KJmo...

    Text Solution

    |

  12. Predict the sign of DeltaS^(@) for the following reaction : 2H(2)S (...

    Text Solution

    |

  13. Which one of the following demonstrates a decrease in entropy ?

    Text Solution

    |

  14. If the enthalpy change for the transition of liquid water to steam is ...

    Text Solution

    |

  15. A catalyst

    Text Solution

    |

  16. A process is taking place at constant temperature and pressure. Then

    Text Solution

    |

  17. In an irreversible process taking place at constant T and P and in whi...

    Text Solution

    |

  18. A reaction occurs spontaneously if

    Text Solution

    |

  19. Ths standard free energy change Delta G^(@) is related to K (equilibri...

    Text Solution

    |

  20. If K lt1.0, what will be the value of DeltaG^(@) out of the following ...

    Text Solution

    |