Home
Class 11
CHEMISTRY
S(H(2(g)))^(0) = 130.6 JK^(-1) mol^(-1),...

`S_(H_(2(g)))^(0) = 130.6 JK^(-1) mol^(-1), S_(H_(2)O_((l)))^(0) = 69.9JK^(-1) mol^(-1), S_(O_(2(g)))^(0) = 205 JK^(-1)`, Then the absolute entropy change of `H_(2(g)) + (1)/(2)O_(2(g)) rarr H_(2)O_((l))` is

A

`-163.2 Jmol^(-1) K^(-1)`

B

`+ 163.2 J mol^(-1) K^(-1)`

C

`-303 J mol^(-1) K^(-1)`

D

`+303J mol^(-1) K^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A

`Delta S= S_(P) - S_(R ) = S_(H_(2)O)^(0) - S_(H_(2))^(0) - (1)/(2) S_(O_(2))^(0)`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-III) (LEVEL - II (ADVANCED) STARAIGHT OBJECTICE TYPE QUESTIONS)|12 Videos
  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-III) (LEVEL - II (ADVANCED) MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS)|5 Videos
  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-II) (LEVEL - I(MAIN) INTEGER TYPE QUESTIONS)|6 Videos
  • CHEMICAL THERMODYANMICS

    AAKASH SERIES|Exercise Questions For Descriptive Answers|28 Videos
  • ELECTRON MIGRATION EFFECTS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|10 Videos

Similar Questions

Explore conceptually related problems

Calculate Delta_(r)G^(0) for (NH_(4)Cl, s) at 310K. Given: Dleta _(f)H^(0) for (NH_(4)Cl, s) = - 314.5 KJ/mol, Delta_(r ) C_(P) = 0 S_(N_(2)(g))^(0) = 192JK^(-1) mol^(-1), S_(H_(2) (g))^(0) = 130.5 JK^(-1) mol^(-1), S_(Cl_(2)(g))^(0) = 233JK^(-1) mol^(-1), S_(NH_(4)Cl(s))^(0) = 99.5 JK^(-1) mol^(-1) . All given data at 300K

If DeltaH_(f)^(0) " for" H_(2)O_(2(l)) and H_(2)O_((l)) " are " -188 kJ mol^(-1) and -286 kJ mol^(-1) , what will be the enthalpy change of the reaction 2H_(2)O_(2(l)) rarr 2H_(2)O_((l)) + O_(2(g)) = ?

The enthalpy of the reaction H_(2(g)) + O_(2(g)) rarr H_2O_((g)) is DeltaH_1 and that of H_(2(g)) + O_(2(g)) rarr H_(2)O_((l)) is Delta H_2 . Then

Liquid water freezes at 273K under external pressure of 1 atm. The process is at equilibrium H_(2)O (l) hArr H_(2)O (s) at 273 K & 1 atm. However it was required to calculate the thermodynamic parameters of the fusion process occuring at same pressure & different temperature.Using the following data, answer the question that follow. d_("ice") = 0.9 gm/cc, d_(H_(2)O(l)) = 1 gm//c, C_(P) [H_(2)O(s))] = 36.4 JK^(-1) mol^(-1) C_(P) [H_(2)O(l)] = 75.3 JK^(-1) mol^(-1), Delta H_("fusion") = 6008.2 J mol^(-1) The value of '' Delta H_("fusion") '' at 263K & 1 atm will be

The reaction, H_(2(g)) + 1/2O_(2(g)) to H_2O_((l)) , is spontaneous. The DeltaS^(@) = - 163.1 J mol^(-1) K^(-1) . The absolute entropies of H_(2(g)) and O_(2(g)) are 130.6 JK^(-1)mol^(-1) and 205 JK^(-1) mol^(-1) respectively. Calculate the absolute entropy of water.

Balance the following equation by electron transfer method. NH_(3)(g) + O_(2)(g) rarr NO (g) + H_(2)O(l)

Liquid water freezes at 273K under external pressure of 1 atm. The process is at equilibrium H_(2)O (l) hArr H_(2)O (s) at 273 K & 1 atm. However it was required to calculate the thermodynamic parameters of the fusion process occuring at same pressure & different temperature.Using the following data, answer the question that follow. d_("ice") = 0.9 gm/cc, d_(H_(2)O(l)) = 1 gm//c, C_(P) [H_(2)O(s))] = 36.4 JK^(-1) mol^(-1) C_(P) [H_(2)O(l)] = 75.3 JK^(-1) mol^(-1), Delta H_("fusion") = 6008.2 J mol^(-1) '' DeltaS_("fusion") '' at 263 K & 1 atm will be

AAKASH SERIES-CHEMICAL THERMODYNAMICS-LECTURE SHEET (EXERCISE-III) (LEVEL - I(MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)
  1. Which one of the following has Delta S^(0) greater than zero?

    Text Solution

    |

  2. Which of the following process has negative value of DeltaS?

    Text Solution

    |

  3. For the process Dry ice rarr CO(2(g))

    Text Solution

    |

  4. S(H(2(g)))^(0) = 130.6 JK^(-1) mol^(-1), S(H(2)O((l)))^(0) = 69.9JK^(-...

    Text Solution

    |

  5. The direct conversion of A to B is difficult, hence it is carried out ...

    Text Solution

    |

  6. Enthalpy of vapourisation for water is 186.5 KJ "mole"^(-1). The entro...

    Text Solution

    |

  7. Considering entropy (s) as a thermo dynamic parameter, the criterion f...

    Text Solution

    |

  8. DeltaS("says") "for" 4Fe((s)) + 3O(2) rarr 2Fe(2) O(3(s)) " is" -550 J...

    Text Solution

    |

  9. Suppose that a reaction has Delta H= -400kJ and Delta S = - 50J//K. A ...

    Text Solution

    |

  10. If an endothermic reaction is non-spontaneous at freezing point of wat...

    Text Solution

    |

  11. The favourable conditions for a spontaneous reaction are

    Text Solution

    |

  12. Incorrect statement related to an irreversible process is

    Text Solution

    |

  13. The process of evaporation of a liquid is accompanised by (A) Increa...

    Text Solution

    |

  14. Which of the following is true for a spontaneous process?

    Text Solution

    |

  15. H((aq))^(+) + OH((aq))^(-) rarr H(2)O((l)) , Delta H = -ve and Delta G...

    Text Solution

    |

  16. An equilibrium reaction X + Y hArr W +Z, Delta H= +ve is spontaneous i...

    Text Solution

    |

  17. The correct is

    Text Solution

    |

  18. What of the following relationship is correct?

    Text Solution

    |

  19. Delta G^(0) for the reaction x + y hArr z is -4.606 kcal. The value of...

    Text Solution

    |

  20. (A): Entropy of a perfect crystalline substance at absolute zero is ze...

    Text Solution

    |