Home
Class 12
CHEMISTRY
Is the entropy of the universe constant?...

Is the entropy of the universe constant?

Text Solution

Verified by Experts

No, increases continuously.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise FILL IN THE BLANKS|23 Videos

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise SHORT TYPE QUESTIONS|37 Videos

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise MCQ HOTSPOT (SINGLE CORRENT TYPE)|71 Videos

  • CHEMICAL KINETICS

    CHHAYA PUBLICATION|Exercise EXERCISE (NUMERICAL PROBLEMS)|37 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    CHHAYA PUBLICATION|Exercise PRACTICE SET 15|15 Videos

Similar Questions

Explore conceptually related problems

Entropy of the universe is

For a chemical reaction occurring at constant temperature and pressure show that DeltaG=-TDeltaS_("univ") , where DeltaG= change in free energy of the system and DeltaS_("univ") =change in entropy of the universe. Using this equation explain when a reaction at a constant temperature and pressure will be (i) spontaneous (ii) non-spontaneous (iii) at equilibrium.

Entropy is

Show that for an ideal gas the difference between the molar heat capacities at constant pressure and at constant volume is equal to the universal gas constant (R).

Explain the two specific heats of a gas? Show that the difference between two specific heats is equal to the universal gas constant.

What is universal gas constant?

The dimension of universal constant of gravitation G is

Calculate the value of universal gas constant in CGS unit.

"The total momentum in the universe remains constant." Is this statement true?

The total momentum in the universe remains constant. Is this statement true? If so, why?

CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-VERY SHORT TYPE QUESTIONS
  1. Write down the relation between DeltaH and DeltaU for the following re...

    Text Solution

    |

  2. If the bond energy of C-H bond is +416.18 kJ*mol^(-1), then what will ...

    Text Solution

    |

  3. What is the most important feature of Hess's law?

    Text Solution

    |

  4. The standard bond dissociation energy of A(2)(g),B(2)(g) and AB(g) mol...

    Text Solution

    |

  5. At temperature TK the difference between DeltaH and DeltaU for the fol...

    Text Solution

    |

  6. Give an example of a spontaneous process in which the change in enthal...

    Text Solution

    |

  7. What will be the sign of enthalpy change and entropy change for a proc...

    Text Solution

    |

  8. What will be the signs of DeltaG for melting of ice at 267 K and 276K ...

    Text Solution

    |

  9. Water and ice remain in equilibrium at 0^(@)C and 1 atm pressure. What...

    Text Solution

    |

  10. Which one of the following relation or expression is true for a sponta...

    Text Solution

    |

  11. What will be the sign of entropy change for the process I(2)(g)toI(2)(...

    Text Solution

    |

  12. What will be the change in entropy of the surroundings in a spontaneou...

    Text Solution

    |

  13. Is the entropy of the universe constant?

    Text Solution

    |

  14. Given an example of a process in which the change in enthalpy of the s...

    Text Solution

    |

  15. What sign (+ or -) of entropy change in an endothermic reaction makes ...

    Text Solution

    |

  16. In which case the DeltaS(sys) will be maximum between the following tw...

    Text Solution

    |

  17. Predict the sign of DeltaS^(0) for the given reaction? 2H(2)S(g)+3O(...

    Text Solution

    |

  18. Does the Gibbs free energy of a substance decrease or increase if the ...

    Text Solution

    |

  19. In a process, the value of the change in entropy of the system and its...

    Text Solution

    |

  20. The change in entropy of the system in a process AtoBtoC is 25J*K^(-1)...

    Text Solution

    |