Home
Class 11
CHEMISTRY
Statement -1: Enthalpy and entropy of an...

Statement -1: Enthalpy and entropy of any elements substance in the standard states are taken as zero .
Statement-2: At absolute zero , partiles of the perfectly crystalline substance become completely motioness.

A

Statement-1 is true, Statement-2, is true, Statement -2 is a correct explanation for statement-1

B

Statement-1 is true, Statement-2, is true, Statement -2 is not a correct explanation for statement-1

C

Statement-1 is true, Statement-2 is false

D

Statement-1 is false, Statement-2 is true

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARAYNA|Exercise Level-VI|150 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Passages|13 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Level-II (H.W)|24 Videos

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EXERCISE - IV EXEMPLAR PROBLEMS|24 Videos

Similar Questions

Explore conceptually related problems

Enthalpy, entropy and free energy of formation of elementary substances in the standard state are taken as zero.

The enthalpy of any element in the standard state is taken as…………….

The enthalpy of elements in their standard atates are taken as zero .The enthalpy of formation of a compound:

NARAYNA-THERMODYNAMICS-Level -V
  1. Staetement -1: The magniyude of the work involed in an isothermal expa...

    Text Solution

    |

  2. Statement -1: For every chmical reaction at equilibrium , standard Gid...

    Text Solution

    |

  3. Statement-1: There is a natural asymmetry between work to heat and con...

    Text Solution

    |

  4. Statement -1: Entropy change in reversible adiabatic expansion of an i...

    Text Solution

    |

  5. Statement -1: The Standard free energy changes of all spontaneously oc...

    Text Solution

    |

  6. Statement -1: Enthalpy and entropy of any elements substance in the st...

    Text Solution

    |

  7. Statement-1: A reaction which is spontaneous and accompained by decrea...

    Text Solution

    |

  8. Statement -1: Many endothermic reactions that are not spontaneous at r...

    Text Solution

    |

  9. Statement-1: Decrease of free energy during the process under constant...

    Text Solution

    |

  10. Statement-1: All combustion reactions are exothermic. Statement-2: E...

    Text Solution

    |

  11. Statement-1: Due to adiabatic free expansion temperature of real gas m...

    Text Solution

    |

  12. Statement-1: Under adiabatic free expansion, ((dU)/(dV))(T) is +ve whe...

    Text Solution

    |

  13. Statement-1: At low temperatures, DH is the dominant factor for sponta...

    Text Solution

    |

  14. Statement-1: A reaction which is spontaneous and accompained by decrea...

    Text Solution

    |

  15. The temperature of 1 mole helium gas is increased by 1^@C. Find the in...

    Text Solution

    |

  16. An ideal gas is taken through the cycle A rarr B rarr C rarr A As show...

    Text Solution

    |

  17. If 2kcal heat is given to a system and 6 kcal work is done on the syst...

    Text Solution

    |

  18. The constant volume molar heat capacity of an ideal gas is expressed b...

    Text Solution

    |

  19. Molar enthalpy of vaporization of a liquid is 2.6 kJ. If boiling point...

    Text Solution

    |

  20. The chemical reaction : A rarr P, Delta H^(@) = 2.8 kJ is spontaneous ...

    Text Solution

    |