Home
Class 11
CHEMISTRY
For a reaction to be spontaneous at any ...

For a reaction to be spontaneous at any temperature, the conditions are

A

`DeltaH=+ve, DeltaS=+ve`

B

`DeltaH=-ve, DeltaS=-ve`

C

`DeltaH=+ve, DeltaS=-ve`

D

`DeltaH=-ve, DeltaS=+ve`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaG=DeltaH-TDeltaS`
`DeltaG=-ve` if `DeltaH=-ve ` and `DeltaS` is `+ve.`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NCERT FINGERTIPS|Exercise Gibbs Energy Change And Equilibrium|4 Videos

  • THERMODYNAMICS

    NCERT FINGERTIPS|Exercise Higher Order Thinking Skills|8 Videos

  • THERMODYNAMICS

    NCERT FINGERTIPS|Exercise Enthalpies For Different Type Of Reaction|22 Videos

  • THE S-BLOCK ELEMENTS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

The a reaction to be spontaneous at all temperature

For a reaction to be spontaneous at all the temperature:

A reactions is spontaneous if

Which of the following sets of conditions would result in a reaction that is spontaneous at high temperature but non-spontaneous at low temperature?

A reaction cannot take place spontaneously at any temperture when

What are the signs of DeltaH^(@) and DeltaS^(@) for a reaction that is spontaneous at all temperature?

A reaction will never be spontaneous at any temperature and pressure provided.

Spontaneous Reaction

A reaction will never the spontaneous at any temperature and pressure if

NCERT FINGERTIPS-THERMODYNAMICS-Spontaneity
  1. For a reaction: X rarr Y+Z Absolute entropies are X="120 J K"^(-1)"m...

    Text Solution

    |

  2. What will be the melting point of KCl if enthalpy change for the reac...

    Text Solution

    |

  3. For reversible reaction : X((g))+3Y((g))hArr 2Z((g)), DeltaH=-"40 kJ" ...

    Text Solution

    |

  4. At 373 K, steam and water are in equilibrium and DeltaH=40.98" kJ mol"...

    Text Solution

    |

  5. Match the column I with column II and mark the appropriate choice.

    Text Solution

    |

  6. Read the following statements regarding spontaneity of a process and m...

    Text Solution

    |

  7. Which of the following processes is a non-spontaneous process?

    Text Solution

    |

  8. Which of the following statements regarding Gibb's energy change is co...

    Text Solution

    |

  9. For a reaction to be spontaneous at any temperature, the conditions ar...

    Text Solution

    |

  10. For the reaction given below the value of standard Gibbs free energy o...

    Text Solution

    |

  11. What is the entropy change when 1 mole oxygen gas expands isothermally...

    Text Solution

    |

  12. Mathc the following columns and mark the appropriate choice.

    Text Solution

    |

  13. One word answer is given for the following definitions, Mark the one w...

    Text Solution

    |

  14. In a reaction P+Q rarr R+S, there is no change in entropy, Enthalpy ch...

    Text Solution

    |

  15. For reaction, 2K((g))+L((g))rarr2M((g)),DeltaU^(@)=-"10.5 KJ and "Delt...

    Text Solution

    |

  16. Which of the following statements is not correct ?

    Text Solution

    |

  17. DeltaG is the net energy available to do useful work and is a measure ...

    Text Solution

    |

  18. Dissolution of ammonium chloride in water is an endothermic reaction, ...

    Text Solution

    |

  19. What will be the signs of DeltaH and DeltaS when NaOH is dissolved in ...

    Text Solution

    |

  20. At absolute zero, the entropy of a pure crystal is zero. This is

    Text Solution

    |