Home
Class 11
CHEMISTRY
For an isolated system, DeltaU=0, what w...

For an isolated system, `DeltaU=0`, what will be `Delta S`?

Text Solution

Verified by Experts

Consider the example of two gases contained separately in two bulbs connected by a stop-cock and isolated from the surroundings as an example of an isolated system. On opening the stop-cock, the two gases mix up, i.e., the system becomes more disordered. This implies that `DeltaS gt 0`.
Promotional Banner

Topper's Solved these Questions

  • NCERT BASED EXERCISE

    CENGAGE CHEMISTRY ENGLISH|Exercise Chemical Equilibrium|73 Videos

  • NCERT BASED EXERCISE

    CENGAGE CHEMISTRY ENGLISH|Exercise Atomic Structure|94 Videos

  • ISOMERISM

    CENGAGE CHEMISTRY ENGLISH|Exercise Assertion-Reasoning Type|1 Videos

  • ORGANIC REACTION MECHANISM

    CENGAGE CHEMISTRY ENGLISH|Exercise Analytical and Descriptive|6 Videos

Similar Questions

Explore conceptually related problems

Define isolated system.

For an isolated system, the entropy :

What is an isolated system ?

A : For an isolated system Delta G = - TDeltaS_("total") R: For an isolated system q = 0.

An isolated system is that system in which

An isolated system is that system in which

An isolated system is that system in which

Assertion:- If at t=0, centre of mass of an isolated system is at (0,1,2) than at t=2h,25 min, its centre of mass may be (0,1,2). Reason:- For a isolated system, velocity of the centre of mass is constant.

The gravitational potential energy of an isolated system of three particles, each of mass m , at the three corners of an equilateral triangle of side l is

Assertion : In an isolated system the entropy increases. Reason : The processes in an isolated system are adiabatic.

CENGAGE CHEMISTRY ENGLISH-NCERT BASED EXERCISE-Thermodynamics
  1. Calculate the standard enthalpy of formation of CH(3)OH(l) from the fo...

    Text Solution

    |

  2. Calculate the enthalpy change for the process C CI(4)(g)rarrC(g)+4C...

    Text Solution

    |

  3. For an isolated system, DeltaU=0, what will be Delta S?

    Text Solution

    |

  4. For the reaction at 298 K, 2A + B to C DeltaH=400 KJ mol^(-1) an...

    Text Solution

    |

  5. For the reaction, 2CI(g)rarrCI(2)(g), what are the signs of DeltaH ...

    Text Solution

    |

  6. For the reaction 2A(g)+B(g)rarr2D(g) DeltaU^(theta)=-10.55 KJ and ...

    Text Solution

    |

  7. The equilibrium constant for a reaction is 10. What will be the value ...

    Text Solution

    |

  8. Comment on the thermodynamic stability of NO((g)), given (1)/(2)N(2)...

    Text Solution

    |

  9. Calculate the entropy change in surroundings when 1.00 mole of H2O(l) ...

    Text Solution

    |

  10. 0.562g of graphite kept in a bomb calorimeter in excess of oxygen at 2...

    Text Solution

    |

  11. Red phosphorus reacts with liquid bromine in an exothermic reaction : ...

    Text Solution

    |

  12. A swimmer coming out from a pool is covered with a film of water weig...

    Text Solution

    |

  13. With the help of thermochemical equations given below, determine Delta...

    Text Solution

    |

  14. The combustion of 1 mol of benzene takes place at 298 K and 1 atm. Aft...

    Text Solution

    |

  15. Use the bond enthalpies listed below to estimate the enthalpy change f...

    Text Solution

    |

  16. Explain the following terms: (a) System, surroundings (b) State fu...

    Text Solution

    |

  17. Define the following terms: (a) Standard enthalpy of formation (b)...

    Text Solution

    |

  18. In what way internal energy is different from enthalpy? Explain both t...

    Text Solution

    |

  19. Which of the following are open, close or nearly isolated system? (a...

    Text Solution

    |

  20. Which of the following are state functions? (a) Height of a hill ...

    Text Solution

    |