Home
Class 12
CHEMISTRY
The external pressure needed to compress...

The external pressure needed to compress an ideal gas from `22 dm^(3)" to "8 dm^(3)` if work done is of 4.545 kJ is

A

`3.03xx10^(5) Nm^(-2)`

B

`2.03xx10^(5) Nm^(-2)`

C

`1xx10^(5) Nm^(-2)`

D

`-3.4xx10^(5) Nm^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Work done `W=4.545 kJ =4545 J`
`Delta V=22-8=14 dm^(3)`
`=14xx10^(3)m^(3)`
`W= P Delta V`
`=(W)/(Delta V)=(4545)/(14xx10^(-3))`
`P=3.03xx10^(5)" Nm"^(-2)`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (First Law of Thermodynamics)|7 Videos

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (Internal Energy and Enthalpy of a System)|18 Videos

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (Types of Processes)|13 Videos

  • CHEMICAL KINETICS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|50 Videos

  • CHEMISTRIY IN EVERYDAY LIFE

    MARVEL PUBLICATION|Exercise TEST YOUR GRAPS|24 Videos

Similar Questions

Explore conceptually related problems

The constant external pressure required to compress 1 mole of an ideal gas from 23 xx 10^-3 m^3 to 8 xx 10^-3m^3 when work obtained is 9.09 kJ at 27^@ C is _______ .

The pressure of a gas is 100 k Pa. if it is compressed from 1 m^(3) to 10 dm^(3) , find the work done .

The minimum pressure required to compress 600dm^3 of a gas at 1bar to 150dm^3 at 40^@C is

16g of oxygen gas expands isothermally and reversibly at 300 K from 10 dm^(3) to 100 dm^(3) . The work done is ( in J)

3 moles of hydrogen are compressed isothermally and reversible from 60 dm^(3) to 20dm^(3) and 8.22 kJ of work is done on it. Assuming ideal behaviour, calculate the temperature of the gas.

MARVEL PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS-MULTIPLE CHOICE QUESTIONS (Nature of Work and Heat)
  1. Work done during expansion of an ideal gas against constant opposing p...

    Text Solution

    |

  2. The work done in ergs for the reversible expansion of one mole of an i...

    Text Solution

    |

  3. Two moles of an ideal gas expand spontaneouly into vacuum. The work do...

    Text Solution

    |

  4. During the isothermal and reversible compression of an ideal gas the w...

    Text Solution

    |

  5. The volume of a gaseous system increases by 5 litre against a constant...

    Text Solution

    |

  6. A gas undergoes expansion by absorbing 1200 J. If 1/4th of this heat i...

    Text Solution

    |

  7. Certain gas expands from 10 dm^(3)" to "35 dm^(3) isothermally by abso...

    Text Solution

    |

  8. The external pressure needed to compress an ideal gas from 22 dm^(3)" ...

    Text Solution

    |

  9. Maximum work is obtained when

    Text Solution

    |

  10. In an isothennal reversible expansion ofim ideal gas, work done is

    Text Solution

    |

  11. The work done during expansion of a gas in vacuum is zero, because the...

    Text Solution

    |

  12. When Delta V is negative then

    Text Solution

    |

  13. The work done when an ideal gas is compressed isothermally by 1 litre ...

    Text Solution

    |

  14. The work in 1 lit.-atm. done when 3 mole of an ideal gas expands from ...

    Text Solution

    |

  15. When an ideal gas is compressed isothermally by 1 dm^(3) against a pre...

    Text Solution

    |

  16. Calculate the work done when 1.0 mol of water at 373K vaporises agains...

    Text Solution

    |

  17. When Fe(S) is dissovled in aqueous hydrochloric acid in a closed vesse...

    Text Solution

    |