Home
Class 12
CHEMISTRY
A piston whose area is 50 cm^(2) moves t...

A piston whose area is `50 cm^(2)` moves through a distance of 30 cm against a pressure of two atmospheres. Calculate the work done in joules.

A

- 1500 J

B

-403 J

C

-304 J

D

- 30.4 J

Text Solution

Verified by Experts

The correct Answer is:
C
Volume of expansion `Delta V =50 cm^(2) xx 30 cm`
`=1500 cm^(3)=1.5 dm^(3)`
`W=-P Delta V =-2xx1.5` atmosphere `dm^(3)`
`=-3xx101.3 J =-303.9 J ~~ -304 J`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (PREVIOUS YEARS ENTRANCE EXAMS)|76 Videos

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP)|50 Videos

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (Third Law of Thermodynamics)|6 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

A gas expands by 0.5L against a constant pressure of 1 atm . Calculate the work done in joule and calorie.

A gas expands by 2 litres against a constant pressure of 2 atm. Calculate work done in Joule and Calorie.

Three moles of the ideal gas are expanded isothermally from a volume of 300 cm^(3) to 2.5 L at 300 K against a pressure of 1.9 atm. Calculate the work done in L and and joules .

One mole of a gas expands by 3L against a constant pressure of 3 atmosphere. Calculate the work done in : (a) L. atmosphere (b) Joules (c) Calories

One mole of solid Zn is placed in excess of dilute H_(2)SO_(4) at 27^(@)C in a cylinder fitted with a piston . Find the work done for the process of the area of piston is 500 cm^(2) and it moves out by 50 cm against a pressure of 1 atm during the reaction. Zn(s) + 2H^(+)(aq) hArr Zn^(2+) (aq) + H_(2)(g)

Calculate the pressure-volume work by the system when the gas expands from 1.0 litre to 2.0 litre against a constant external pressure of 10 atmospheres. Express the answer in calorie and joule.

If a person moves a trolley for a distance of 10 m with a force of 50 , then the work done is:

MARVEL PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS-MULTIPLE CHOICE QUESTIONS (HIGHER LEVEL)
  1. During an isothermal reversible expansion of an ideal gas, its

    Text Solution

    |

  2. If an ideal gas expands isothermally from 2xx10^(-3) m^(3)" to "2.2xx1...

    Text Solution

    |

  3. A piston whose area is 50 cm^(2) moves through a distance of 30 cm aga...

    Text Solution

    |

  4. The maximum work obtained by an isothermal reversible expansion of 1 m...

    Text Solution

    |

  5. The amount of work done, when 20 xx 10^(-3) kg of Argon (Mol. wt. = 40...

    Text Solution

    |

  6. 10.4 kg of a gas expands isothermally and reversibly. The work done is...

    Text Solution

    |

  7. A sample of a gas in a cylinder expands 20.51 against 0.6 atm pressure...

    Text Solution

    |

  8. In which of the following reactions will Delta U be equal to Delta H ?

    Text Solution

    |

  9. For complete combustion of gaseous isobutane

    Text Solution

    |

  10. The difference between the heats of reaction at constant pressure and ...

    Text Solution

    |

  11. Which of the following is not true?

    Text Solution

    |

  12. Calorific values offood and fuel are determined by

    Text Solution

    |

  13. Ammonium chloride when dissolved in water leads to a cooling sensation...

    Text Solution

    |

  14. Which of the following values of heat of formation indicates that the ...

    Text Solution

    |

  15. The Delta H(0)(f) (KJ mol^(-1))" for "CO(2(g)), N(2)O((g)), CO((g)) an...

    Text Solution

    |

  16. If DeltaH(f)(X), DeltaH(f)(Y), DeltaH(f)(R ) and DeltaH(f)(S) denote t...

    Text Solution

    |

  17. The enthalpy of formation for C(2)H(4)(g), CO(2)(g) and H(2)O(l) at 25...

    Text Solution

    |

  18. Which one of the following bonds has the highest average bond energy (...

    Text Solution

    |

  19. The bond dissociation energy of gaseous H(2), Cl(2) and HCl are 104, 5...

    Text Solution

    |

  20. The bond enthalpy of C - C, C = C, H - H and C - H bonds are 350,600,4...

    Text Solution

    |