Home
Class 11
CHEMISTRY
Predict which of the following reaction ...

Predict which of the following reaction `(s)` has a positive entropy change?
`I` . `Ag^(+)(aq)+Cl^(-)(aq)rarrAgCl(s)`
`II` . `NH_(4)Cl(s)rarrNH_(3)(g)+HCl(g)`
`III` . `2NH_(3)(g)rarrN_(2)+3H_(2)(g)`

A

I and II

B

III

C

II and III

D

II

Text Solution

Verified by Experts

The correct Answer is:
c
`Deltan_(g)" is "+ve`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 3 - One Or More Answers Are Correct|1 Videos

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 3 - Match The Column|2 Videos

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 2 (Q.1 To Q.30)|1 Videos

  • STOICHIOMETRY

    NARENDRA AWASTHI|Exercise Level 3 - Subjective Problems|20 Videos
NARENDRA AWASTHI-THERMODYNAMICS-Exercise
  1. For the reaction , FeCO(3)(s)rarrFeO(s)+CO(2)(g),DeltaH=82.8kJ at 25^(...

    Text Solution

    |

  2. At 5xx10^(5) bar pressure density of diamond and graphite are 3 g//c c...

    Text Solution

    |

  3. Predict which of the following reaction (s) has a positive entropy cha...

    Text Solution

    |

  4. Predict which of the following reaction(s) has a negative entropy chan...

    Text Solution

    |

  5. Which of the following reactions is asssociated with the most negative...

    Text Solution

    |

  6. When two moles of an ideal gas (C(p.m.)=(5)/(2)R) heated form 300K to ...

    Text Solution

    |

  7. Which of the following expression for entropy change of an irreversibl...

    Text Solution

    |

  8. Which of the following expression is known as Clausius inequality ?

    Text Solution

    |

  9. When two moles of ideal gas (Cv = 3/2R) heated from 300 K to 600 K at ...

    Text Solution

    |

  10. If one mole of an ideal gas (C(p.m.)=(5)/(2)R) is expanded isothermall...

    Text Solution

    |

  11. If one mole of an ideal gas Cp = 5/2 R is expanded isothermally at 300...

    Text Solution

    |

  12. When one mole of an ideal gas is compressed to half of its initial vol...

    Text Solution

    |

  13. What is the change in entropy when 2.5 mole of water is heated from 27...

    Text Solution

    |

  14. Calculate standard entropy change in the reaction Fe(2)O(3)(s)+3H(2)...

    Text Solution

    |

  15. Calculate the entropy change (J//mol K) of the given reaction. The mol...

    Text Solution

    |

  16. Given Delta(r)S^(@)=-266 and the listed [S(m)^(@)value] Calculate S^(...

    Text Solution

    |

  17. The entropy change for a phase transformation is :

    Text Solution

    |

  18. What is the melting point of benzene if DeltaH("fusion")= 9.95kJ//mol ...

    Text Solution

    |

  19. DeltaS for freezing of 10 g of H(2)O(l) (enthalpy of fusion is 80 cal/...

    Text Solution

    |

  20. Chloroform has DeltaH("vaporization")=29.2 kJ//"mol" and boils at 61.2...

    Text Solution

    |