Home
Class 11
CHEMISTRY
During a process, a system absorbs 710J ...

During a process, a system absorbs `710J` of heat and does work. The change in `DeltaU` for the process is `460J`. What is the work done by the system?

Text Solution

Verified by Experts

The correct Answer is:
`-250` J
`DeltaU = q + w`
`460 = 710 + w`
`w = 460 - 710 = -250J`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    MODERN PUBLICATION|Exercise Advanced Level Problems|15 Videos

  • THERMODYNAMICS

    MODERN PUBLICATION|Exercise Conceptual Questions -1|19 Videos

  • THERMODYNAMICS

    MODERN PUBLICATION|Exercise Unit Practice Test|12 Videos

  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise Unit Practice Test|13 Videos

Similar Questions

Explore conceptually related problems

During a process, a system abdorbs 710J of heat and does work. The change in DeltaU for the process is 460J . What is the work done by the system?

A system absorbs 920 J of heat and does work. The change in internal energy (Delta U) for the process is 460 J. The work done by the system is

A system absorbs 920 J of heat and does work. The change in internal energy (DeltaU) for the process is 460 J. The work done by the system is ________ .

A system is provided 50 joule of heat and the change in internal energy during the process is 60 J . Magnitude of work done on the system is:

A system absorbs 640 J heat and does work of 260 J, the change in internal energy of the system will be :

Calculate the internal energy change for each of the following processes: (i) A system absorbs 428 J of heat and does work equivalent to 286 J on its surroundings. (ii)62 J of work is done on the system and 128 J of heat is transferred to the surroundings.

A system absorbs 600 J of heat and does a work of 200 J on its surroundings. delta E of system is

MODERN PUBLICATION-THERMODYNAMICS-Practice Problems
  1. Which of the following are state functions : (i) Height of hill (i...

    Text Solution

    |

  2. A system gives out 30 J of heat and does 75 J of work. What is the int...

    Text Solution

    |

  3. During a process, a system absorbs 710J of heat and does work. The cha...

    Text Solution

    |

  4. Four moles of an ideal gas at 2.5 atm and 27^(@)C are compressed isoth...

    Text Solution

    |

  5. A gas expands isothermally from 10 dm^(3) to 20 dm^(3) at 27^(@)C and ...

    Text Solution

    |

  6. The enthalpy changes for the following reactions at 298k and 1atm are ...

    Text Solution

    |

  7. The enthalpy of combustion of benzoic acid (C(6)H(5)COOH) at 298 K and...

    Text Solution

    |

  8. Gaseous N(2)O decomposes at 298 K and forms N(2)(g) and O(2)(g).The De...

    Text Solution

    |

  9. A 1.250 g sample of octane (C(8)H(18)) is burned in excess of oxygen ...

    Text Solution

    |

  10. 20.0 g of ammonium nitrate (NH(4)NO(3)) is dissolved In 125 g of water...

    Text Solution

    |

  11. 1g of graphite is burnt in a bomb calorimeter in excess of oxygen at 2...

    Text Solution

    |

  12. The enthalpy of formation of Fe(2)O(3)(s) is -824.2 kJ "mol"^(-1).Ca...

    Text Solution

    |

  13. The Delta(r)H^(@) for the reaction, 4S(s) + 6O(2)(g) to 4SO(3)(g) ...

    Text Solution

    |

  14. Calculate Delta(f)H^(@) for the reaction, CO(2)(g) + H(2)(g) to CO(g)...

    Text Solution

    |

  15. The enthalpy of formation of C(2)H(5)OH(l), CO(2)(g) and H(2)O(l) are ...

    Text Solution

    |

  16. Calculate the standard enthalpy of formation of ethylene, C(2)H(4)(g) ...

    Text Solution

    |

  17. The standard molar enthalpy of formation of ethane, carbon dioxide and...

    Text Solution

    |

  18. Calculate Delta(r)H^(@) for the reaction : Given Delta(f)H^(@) values ...

    Text Solution

    |

  19. The enthalpy of formation of CH(4), C(2)H(6) and C(4)H(10) are -74.8, ...

    Text Solution

    |

  20. Sucrose undergoes combustion as : C(12)H(22)O(11)(s) + 12O(2)(g) to ...

    Text Solution

    |