Home
Class 11
CHEMISTRY
Some subtances posses some residual entr...

Some subtances posses some residual entropy even at absolute zero. This is because

A

they contain some impurities

B

they attain different orientations of moleculeseven at absolute zero

C

it is difficult to attain absolute zero of temperature

D

all the above factors are responsible

Text Solution

Verified by Experts

The correct Answer is:
B

The residual entropy at absolute zero is due to different orientation of the molecules even at absolute zero.
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    PRADEEP|Exercise Comprehension 1|1 Videos
  • THERMODYNAMICS

    PRADEEP|Exercise Comprehension 2|2 Videos
  • THERMODYNAMICS

    PRADEEP|Exercise SHORT ANSWER QUESTIONS|65 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 perfect crystalline substance has an entropy of zero at absolute zero" is a statement of

Out of different state parameters like E, H, G, A and S, only entropy(s) is the parameter whose absolute value can be determined, by using third law of thermodynamics. While perfect crystals hace zero entropy at 0K , non-perfect crystals have some residual entropy at 0K . From this info and the following data chart, answer the questions that follow : Which of the substances will have residual entropy at 0 K

Out of different state parameters like E, H, G, A and S, only entropy(s) is the parameter whose absolute value can be determined, by using third law of thermodynamics. While perfect crystals hace zero entropy at 0K , non-perfect crystals have some residual entropy at 0K . From this info and the following data chart, answer the questions that follow : What will be molar entropy of liquid R at 300 K ?

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

PRADEEP-THERMODYNAMICS-COMPETITION FOCUS (JEE ( main andAdvanced ) /Medical Entrance Special)
  1. Standard entropies of X(2), Y(2) and XY(3) are 60, 30 are 50 JK^(-1) m...

    Text Solution

    |

  2. For the reaction: X(2)O(4)(l)rarr2XO(2)(g) DeltaU=2.1 cal , DeltaS...

    Text Solution

    |

  3. Some subtances posses some residual entropy even at absolute zero. Thi...

    Text Solution

    |

  4. When one mole of a monoatomic ideal gas at initial temperature T K e...

    Text Solution

    |

  5. When 1 mol of CO(2)(g) occupying a volumeof 10 L at 27^(@) isallowed ...

    Text Solution

    |

  6. 1 mol of NH(3) gas( gamma = 1.33) at 27^(@)Cis allowed to expand adiab...

    Text Solution

    |

  7. Temperature of1 mole of a gas is increased by 1^(@) at constant pressu...

    Text Solution

    |

  8. For the reaction , H(2)(g) + (1)/(2) O(2)(g) rarr H(2)(l),DeltaC(p)=32...

    Text Solution

    |

  9. Two separate experiments were carried out involving adiabatic revers...

    Text Solution

    |

  10. Efficiency of Carnot engine is 100% if

    Text Solution

    |

  11. An ideal gas is allowed to expand both reversibly and irreversibly in ...

    Text Solution

    |

  12. The enthalpy of hydrogenation of cyclohexene is -119.5KJ . If resonanc...

    Text Solution

    |

  13. Water is supercooled to - 4^(@)C. The enthalpy (H) is

    Text Solution

    |

  14. Enthalpy is equal to

    Text Solution

    |

  15. Consider the following liquid-vapour equilibrium. "Liquid" hArr "Vap...

    Text Solution

    |

  16. The standard state Gibbs free energies of formation of ) C(graphite an...

    Text Solution

    |

  17. For the adiabatic expansion of an ideal gas:

    Text Solution

    |

  18. In which of the following entropy increases?

    Text Solution

    |

  19. The criteria for spontaneity of a process is/are

    Text Solution

    |

  20. Which of the following statement are not correct ?

    Text Solution

    |