Home
Class 11
CHEMISTRY
Predict in which of the following reacti...

Predict in which of the following reactions, entropy increases/decreases
`H_(2)(g) rarr 2H(g)`

Text Solution

Verified by Experts

here 2 moles of H atoms have higher entropy than one mole of hydrogen molecule.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    SUBHASH PUBLICATION|Exercise Numerical problems :|38 Videos

  • CHEMICAL THERMODYNAMICS

    SUBHASH PUBLICATION|Exercise Two marks questions and answers :|47 Videos

  • CHEMICAL EQUILIBRIUM

    SUBHASH PUBLICATION|Exercise NUMERICAL PROBLEMS|34 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    SUBHASH PUBLICATION|Exercise THREE MARKS more than 3 marks|21 Videos

Similar Questions

Explore conceptually related problems

Predict in which of the following reactions, entropy increases/decreases 2NaHCO_(3) rarr Na_(2)CO_(3)(s) + CO_(2)(g) + H_(2)O(g)

Predict in which of the following reactions, entropy increases/decreases Temperature of a crystalline solid is raised from 0 K to 115 K

Define entropy.Predict in which of the following,entropy increases of decreases: H2(g)-2H(g)

Define entropy.Predict in which of the following,entropy increases or decreases: A liquid crytallises inot solid.

Express the rate of the following reaction in terms of the formation of ammonia : N_(2)(g)+3H_(2)(g) rarr 2NH_(3)(g)

In which of the following reactions, standard reaction entropy change (Delta S^(@)) is positive and standard Gibb's energy (Delta G^(@)) decreases sharply with increasing temperature ?

Calculate the heat of reaction of the following reaction : CO_(2)(g) + H_(2)(g) rarr CO(g) + H_(2)O(g) Given that the Delta_(f)H^(@) of CO(g) = -110.5 kJ, Delta_(f)H^(@) of CO_(2)(g) = -393.8 kJ , Delta_(f)H^(@) of H_(2)O(g) = -241.8 kJ respectively

A mixture of NH_(3)( g) and N_(2) H_(4)(g) is placed in a sealed vessel at 27^(@)C . The total pressure of the gas is 0.5 atm. The vessel is heated to 927^(@)C where the following decomposition reaction take place : N_(2) H_(4) rarr N_(2)(g) + 2H_(2)(g) 2NH_(3)(g) rarr N_(2)(g) + 3H_(2) ( g) The pressure in the vessel at this stage becomes 4.5 atm. The mole percent of NH_(3)(g) in the original mixture was :

On the basis of thermochemical equation (a), (b) and (c ), which of the algebric relationship is correct. ( a) C("graphite") + O_(2)(g) rarr CO_(2)(g) , Delta_(r)H = x kJ mol^(-1) (b) C("graphite") + (1)/(2)O_(2)(g) rarr CO(g) , Delta_(r)H = y kJ mol^(-1) ( c) CO(g) + (1)/(2)O_(2)(g) rarr CO_(2)(g) , Delta_(r)H = z kJ mol^(-1)

SUBHASH PUBLICATION-CHEMICAL THERMODYNAMICS-Three mark questions and answers
  1. Justify the following statements : Reaction with Delta G^() lt 0 al...

    Text Solution

    |

  2. Justify the following statements : Many thermodynamically feasible ...

    Text Solution

    |

  3. Justify the following statements : At low temperatures, enthalpy ch...

    Text Solution

    |

  4. Explain internal energy as a state function.

    Text Solution

    |

  5. Describe the measurement of Delta U by bomb calorimeter.

    Text Solution

    |

  6. Consider the reaction. A + B rarr C + D If the reaction is endotherm...

    Text Solution

    |

  7. Consider the reaction. A + B rarr C + D If the reaction is exothermi...

    Text Solution

    |

  8. Consider the reaction. A + B rarr C + D If the reaction is exothermi...

    Text Solution

    |

  9. Predict in which of the following reactions, entropy increases/decreas...

    Text Solution

    |

  10. Predict in which of the following reactions, entropy increases/decreas...

    Text Solution

    |

  11. Predict in which of the following reactions, entropy increases/decreas...

    Text Solution

    |

  12. Describe the measurement of Delta U by bomb calorimeter.

    Text Solution

    |

  13. Explain change in enthalpy.

    Text Solution

    |

  14. Write the Born-Haber cycle for NaCl.

    Text Solution

    |

  15. Show that entropy as a state function.

    Text Solution

    |

  16. Explain change in entropy of a system during a reversible process Delt...

    Text Solution

    |

  17. Derive Gibb's Helmholtz equation.

    Text Solution

    |

  18. Show that free energy (Delta G) as a criterion for spontaneous and non...

    Text Solution

    |

  19. Write the relation between Delta G^(@) and equilibrium constant.

    Text Solution

    |

  20. Explain Gibb's energy change and equilibrium.

    Text Solution

    |