Home
Class 12
CHEMISTRY
Pressure-volume (PV) work done by an ide...

Pressure-volume (PV) work done by an ideal gaseous system at constant volume is (where U is internal energy of the system)

A

`Delta P//P`

B

zero

C

`-V Delta P`

D

`-Delta U`

Text Solution

Verified by Experts

The correct Answer is:
B
From 1st law of thermodynamics
`Delta U =q+W, Now W = - P Delta V. for Delta V = 0, W =0 `
Promotional Banner

Topper's Solved these Questions

  • Chemical Thermodynamics & Energetics

    NIKITA PUBLICATION|Exercise QUESTION FROM COMPETITIVE EXAM|35 Videos

  • CHEMICAL KINETICS

    NIKITA PUBLICATION|Exercise MCQs|351 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    NIKITA PUBLICATION|Exercise MCQs|224 Videos

Similar Questions

Explore conceptually related problems

Consider the vaporization of 1g of water at 100^(@)C at one atmosphere pressure. Compute the work done by the water system in the vaporization and change internal energy of the system.

Heat given to a system is 30 joules and work done by the system is 15 joules. The change in the internal energy of the system will be

Heat given to a system is 35 joules and work done by the system is 15 joules. The change in the internal energy of the system will be

The change in the internal energy for an isolated system at constant volume is

NIKITA PUBLICATION-Chemical Thermodynamics & Energetics-QUESTION FROM COMPETITIVE EXAM
  1. The Gibbs energy for the decomposition of Al(2)O(3) at 500^(@)C is as...

    Text Solution

    |

  2. The entropy change involved in the isothermal reversible expansion of ...

    Text Solution

    |

  3. The incorrect expression among the following is

    Text Solution

    |

  4. In which of the following reactions,standard reaction entropy change(D...

    Text Solution

    |

  5. The enthalpy of fusion of water is 1.435 kcal//"mole". The molar entro...

    Text Solution

    |

  6. Standard enthalpy of vaporisationDeltaV(vap).H^(Theta) for water at 10...

    Text Solution

    |

  7. A piston filled with 0.04 mol of an ideal gas expands reversibly from ...

    Text Solution

    |

  8. At 27^(@)C, one mole of an ideal gas is compressed isothermally and re...

    Text Solution

    |

  9. A piston filled with 0.04 mol of an ideal gas compress reversibly from...

    Text Solution

    |

  10. Pressure-volume (PV) work done by an ideal gaseous system at constant ...

    Text Solution

    |

  11. The change of entropy is defined as

    Text Solution

    |

  12. The condition of spontanity of process is

    Text Solution

    |

  13. Mixing of two different ideal gass under isothermal reversible conditi...

    Text Solution

    |

  14. For the complete combustion of ethanol, C(2)H(5)OH(l)+3O(2)(g)rarr2CO(...

    Text Solution

    |

  15. When 5 litres of a gas mixture of methane and propane is perfectly com...

    Text Solution

    |

  16. Three thermochemical eq^(ns) are given below 1)C("graphite")+O(2(g)...

    Text Solution

    |

  17. The standard Gibbs free energy change (DeltaG^0 )25°C for the dissocit...

    Text Solution

    |

  18. Using the Gibbs energy change, Delta G^(@)=+ 63.3 kJ, for the followin...

    Text Solution

    |

  19. For the reaction, X(2)O(4)(l)rarr2XO(2)(g),DeltaE=2.1Kcal , DeltaS...

    Text Solution

    |

  20. For the process H(2)O(l)toH(2)O(g) at t=100^(@)C and 1 atmosphere pres...

    Text Solution

    |