Home
Class 11
CHEMISTRY
A system loses 120 ) of heat and does 80...

A system loses 120 ) of heat and does 80 J of work. Calculate the change in the internal energy of the system.

Text Solution

AI Generated Solution

To solve the problem of calculating the change in internal energy of the system, we will use the First Law of Thermodynamics, which states: \[ \Delta U = Q + W \] Where: - \(\Delta U\) = Change in internal energy ...
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    ICSE|Exercise REVIEW EXERCISES (Fill in the blanks )|6 Videos

  • CHEMICAL THERMODYNAMICS

    ICSE|Exercise VERY SHORT ANSWER TYPE QUESTIONS |56 Videos

  • CHEMICAL THERMODYNAMICS

    ICSE|Exercise NCERT TEXT-BOOK. EXERCISES|22 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    ICSE|Exercise NCERT TEXT-BOOK EXERCISES ( WITH HINTS AND SOLUTIONS)|47 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    ICSE|Exercise NCERT TEXT-BOOK. EXERCISE (With Hints and Solutions)|63 Videos

Similar Questions

Explore conceptually related problems

During a process, a system absorbs 710 kJ of heat and does 250 J of work. Calculate the change in the internal energy of the system.

A system absorbs 50 kJ heat and does 20 kJ of work. What is the net change in the internal energy of the system ?

A gas expands against a constant pressure of 1 atm from a volume of 5L to 10L. During the process, system absorbs 400 J of heat from the surroundings. Calculate the change in the internal energy of the system.

A system gives out 20 J of heat and also does 40 J of work. What is the internal energy change?

A system absorbs 400 J of heat and does work equivalent to 150 J on the surroundings. Calculate the change in the internal energy of the system.

A system gives out 30 J of heat and also does 40 J of work. What is the internal energy change?

A system absorbs reversibly 600 J of heat and performs 250 J of work. The increase in the internal energy of system is :-

The work done by a system is 10J , when 40J heat is supplied to it. Calculate the increase in the internal enegry of system.

A system absorbs 20kJ heat and also does 10kJ of work. The net internal enegry of the system

A system absorbs 20kJ heat and also does 10kJ of work. The net internal enegry of the system

ICSE-CHEMICAL THERMODYNAMICS -REVIEW EXERCISES
  1. Compute the standard free energy of the reaction at 27^@C for the com...

    Text Solution

    |

  2. The reaction CH3COOH(l) + C2H5OH(l) hArr CH3 COOC2H5(l) + H2O (l) ...

    Text Solution

    |

  3. A system loses 120 ) of heat and does 80 J of work. Calculate the chan...

    Text Solution

    |

  4. Calculate the enthalpy change for the reaction CH2 = CH2(g) + H2(g0 ...

    Text Solution

    |

  5. Sort out the exothermic and endothermic reactions among the following:...

    Text Solution

    |

  6. Calculate the standard enthalpy change for the reaction CH4 (g) + ...

    Text Solution

    |

  7. Calculate the standard heat of formation of propane if its heat of com...

    Text Solution

    |

  8. When 14.9 g of solid KCl is dissolved in large excess of water, the am...

    Text Solution

    |

  9. what is entropy change for reaction 2H2(g) + O2 (g) -----?2H2O(l). Sta...

    Text Solution

    |

  10. Calculate the amount of heat liberated when 500 cm^3 " of " N/10 H2SO4...

    Text Solution

    |

  11. The standard molar heat of formation of ethane, carbon dioxide and wat...

    Text Solution

    |

  12. The Delta H^@ for the reaction H2(g) + I2(g) to 2HI(g) is +53.6 ...

    Text Solution

    |

  13. The heat of combustion of butane is 2658 kl. A cylinder of LPG gas (co...

    Text Solution

    |

  14. The calorific value of milk is 3.2 kJ g^(-1). A child needs about 4000...

    Text Solution

    |

  15. Sucrose undergoes combustion as C12 H22 O11 + 12 O2(g) to 12CO2(g)...

    Text Solution

    |

  16. Calculate the heat of formation of methanol (CH3OH) from thhe followin...

    Text Solution

    |

  17. Calculate the heat of formation of MgCO2 (s) from the following data ...

    Text Solution

    |

  18. Calculate the bond energy of H-Cl bond, given that the bond energies o...

    Text Solution

    |

  19. Calculate the heat of combustion of ethyl alcohol from the following d...

    Text Solution

    |

  20. What would be the complications if Hess's law were not true?

    Text Solution

    |