Home
Class 12
CHEMISTRY
Change in entropy is negative for...

Change in entropy is negative for

A

Bromine `(l) rarr` Bromine (g)

B

`C(s)+H_(2)O(g)rarrCO(g)+H_(2)(g)`

C

`N_(2)(g,10 atm)rarr N_(2)(g, 1 atm)`

D

`Fe(at 400 K)rarr Fe(at 300 K)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    ALLEN|Exercise EXERCISE -3|108 Videos

  • THERMODYNAMICS

    ALLEN|Exercise EXERCISE -4|18 Videos

  • THERMODYNAMICS

    ALLEN|Exercise EXERCISE -1B|22 Videos

  • TEST PAPERS

    ALLEN|Exercise CHEMISTRY|19 Videos

  • Thermodynamics And Thermo Chemistry

    ALLEN|Exercise All Questions|39 Videos

Similar Questions

Explore conceptually related problems

In which can change in entropy is negative

Change in entropy is positive for:

Statement: The thermodynamics functions which determines the spontaneity of a process is the free energy. For a process to be spontaneous, the change in free energy must be negative. Explanation:The change in free energy is related to the change in enthalpy and change in entropy. the change in entropy for a process must be always positive if it is spontaneous.

What is entropy change? What is the change of entropy with change of (i) temperature and (ii) pressure? Correlate the behaviour with the randomness.

ALLEN-THERMODYNAMICS -EXERCISE -2
  1. Entropy means

    Text Solution

    |

  2. Delta S for the reaction , MgCO(3)(s)rarr MgO(s)+CO(2)(g) will be :

    Text Solution

    |

  3. Change in entropy is negative for

    Text Solution

    |

  4. In which reaction Delta S is positive :-

    Text Solution

    |

  5. When the egg is hard boiled, there is

    Text Solution

    |

  6. If S^(@) for H(2),Cl(2) and HCl are 0.13, 0.22 and 0.19 KJ K^(-1)mol^(...

    Text Solution

    |

  7. Which has the least entropy :

    Text Solution

    |

  8. When two gases are mixed the entropy :-

    Text Solution

    |

  9. If the enthalpy of vaporisation of water is 186.5 J mol^(-1), then ent...

    Text Solution

    |

  10. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

    Text Solution

    |

  11. If 900J//g of heat is exchanged at boiling point of water then water...

    Text Solution

    |

  12. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

    Text Solution

    |

  13. 5 mol of an ideal gas expand reversibly from a volume of 8 dm^(3) to 8...

    Text Solution

    |

  14. In a spontaneous irreversible process the total entropy of the system ...

    Text Solution

    |

  15. The total entropy change for a system and its surroundings increases, ...

    Text Solution

    |

  16. Calculate the entropy of Br(2)(g) in the reaction H(2)(g)+Br(2)(g)rarr...

    Text Solution

    |

  17. Ammonium chloride when dissolved in water leads to a cooling sensation...

    Text Solution

    |

  18. In which of the following cases entropy decreases?

    Text Solution

    |

  19. Which of the following state function is not zero at standard state :-

    Text Solution

    |

  20. Entropy change for an adiabatic reversible process is

    Text Solution

    |