Home
Class 11
CHEMISTRY
One mole of a gas is allowed to expand f...

One mole of a gas is allowed to expand freely in vacuum at `27^(@)C`. The work done during the process is `:`

A

zero

B

`300kJ`

C

`150kJ`

D

`300J`

Text Solution

Verified by Experts

The correct Answer is:
A
`W=-P_(ext)(V_(2)-V_(1))`
`=-0xx(V_(2)-V_(1))=0`
Promotional Banner

Topper's Solved these Questions

  • THERMOCHEMISTRY

    P BAHADUR|Exercise Exercise 3B objective problems|18 Videos

  • THERMOCHEMISTRY

    P BAHADUR|Exercise Exercise 4 objective Problems|21 Videos

  • THERMOCHEMISTRY

    P BAHADUR|Exercise Exercise 27|1 Videos

  • REDOX REACTIONS

    P BAHADUR|Exercise Exercise(8) Statement:Explanation type problems|19 Videos

  • THERMODYNAMICS

    P BAHADUR|Exercise Exercise|232 Videos

Similar Questions

Explore conceptually related problems

The equation of a state of a gas is given by p(V-b)=nRT . If 1 mole of a gas is isothermally expanded from volume V and 2V, the work done during the process is

One mole of an ideal gas expands isothermally to double its volume at 27^(@)C . The work done by the gas is nearly

The change in internal energy of two moles of a gas during adiabatic expansion is found to be -100 Joule. The work done during the process is

During an adiabatic expansion of 2 moles of a gas, the change in internal energy was found –50 J . The work done during the process is

Three moles of an ideal gas expanded spotaneously into vacuum. The work done will be

Two moles of an ideal gas expand spontaneouly into vacuum. The work done is :-

71g of chlorine gas is allowed to expand freely into vacuum Calculate w.q DeltaU and DeltaH .

One mole of an ideal gas is allowed to expand reversible and adiabatically from a temperatureof 27^(@)C) if the work done during the process is 3 kJ,the final temperature will be equal to (C_(v)=20JK^(-1))

P BAHADUR-THERMOCHEMISTRY-Exercise 3a objective problems
  1. Heat of neutralisation of HF is :

    Text Solution

    |

  2. The heat of atomisation of PH(3(g)) is 228kcal mol^(-1) and that of P(...

    Text Solution

    |

  3. Given that : 2CO((g))+O(2(g))rarr2CO(2(g)),DeltaH^(@)=-P kJ C((s))...

    Text Solution

    |

  4. For which reaction DeltaH=DeltaU ?

    Text Solution

    |

  5. The enthalpy of hydrogenation of cyclohexene is -119.5kJ mol^(-1). If ...

    Text Solution

    |

  6. For which of the following reactions heat of formation (Delta(f)H) is ...

    Text Solution

    |

  7. For a hypothetical reaction , 3A rarr A(3) DeltaC(p) (i n J)=6.0+2.0...

    Text Solution

    |

  8. In a flask, colourless N(2)O(4) is in equilibrium with brown-coloured ...

    Text Solution

    |

  9. 1 mol e of ice melts at 0^(@)C and constant pressure of 1 atm by absor...

    Text Solution

    |

  10. Which of the following statement is wrong for C((graph ite))rarr C((d...

    Text Solution

    |

  11. 2 mol es of CO and 1 mol e of O(2) are allowed to react completely to ...

    Text Solution

    |

  12. One mole of a gas is allowed to expand freely in vacuum at 27^(@)C. Th...

    Text Solution

    |

  13. A system is provided 50xx10^(3)J energy and work done on the system is...

    Text Solution

    |

  14. A piston exering a pressure of one atm rests on the surface of water a...

    Text Solution

    |

  15. For a reaction DeltaC(p)=2.0+0.2T cal^(@)C and enthalpy of reaction at...

    Text Solution

    |

  16. The latent heat of vaporisation of liquid is 10kcal mol^(-1) at 1 atm ...

    Text Solution

    |

  17. One gram sample of NH(4)NO(3) is decomposed in a bomb calorimeter. The...

    Text Solution

    |

  18. Bond dissociation enthalpy of H(2),Cl(2) and HCl are 434,242 and 431kJ...

    Text Solution

    |

  19. The amount of heat released during the reaction of 300mL of 1M HCl wit...

    Text Solution

    |

  20. The change is entropy when 1 mol e of an ideal gas is compressed to 1/...

    Text Solution

    |