Home
Class 11
CHEMISTRY
In a process, 701 J of heat is absorbed ...

In a process, `701 J` of heat is absorbed by a system and `394 J` of work is done by the system. What is the change in internal energy for the process?

Text Solution

Verified by Experts

`q=+ 701 J ,w = - 394 J , DeltaU =?`
By first law of thermodynamics `Delta U =q +w = + 701 J + ( -394J) = + 307 J`
i.e., internal energy of the system increases by 307J
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    PRADEEP|Exercise NCERT SUPPLEMENTARY EXERCISE|6 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTIONS( MULTIPLE CHOICE QUESTIONS-I)|14 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise CONCEPTUAL QUESTIONS( III.Enthalpy change and its relation with internal energy change)|13 Videos

  • STRUCTURE OF ATOM

    PRADEEP|Exercise Competition Focus (JEE (Main and Advanced)/Medical Entrance (IX. Assertion And Reason Type Questions (Type II))|12 Videos

Similar Questions

Explore conceptually related problems

In a process, 701 J of heat is obsorbed by a system and 394 J of work is done by the system. What is the change in internal energy for the process?

If 150 J of heat is added to a system and the work done by the system is 110 j. then change in internal energy wil be

In a thermodynamics process, 300 joule of heat is supplied to a gas and 200 joule of work is done by the gas. What is the change in internal energy of the system?

A system is provided 50J of heat and work done on the system is 10Joule What is the change in internal energy

Heat equivalent to 50 joule is supplied to a thermodynamic system and 10 joule work is done on the system. What is the change in the internal energy of the system in the process ?

For a gaseous system, if heat rejected by the system is 100 J and work done by the system is 20 J , then change in internal energy is

A system is provided 50J of heat and work done on the system is 20J . What is the change in the internal enegry?

When a system is taken through the process abc shown in figure, 80 J of heat is absorbed by the system and 30 J of work is done by it. If the system does 10 J of work during the process adc, how much heat flows into it during process?

PRADEEP-THERMODYNAMICS-NCERT QUESTIONS AND EXERCISES WITH ANSWERS
  1. The enthalpies of all elements in their standard states are :

    Text Solution

    |

  2. DeltaU^(@) of combustion of methane is -X kJmol^(-1). The value of Del...

    Text Solution

    |

  3. The enthalpy of combustion of methane, graphite and dihydrogen at 298 ...

    Text Solution

    |

  4. A reaction, A+B rarrC + D+ q is found to havea positive entropy change...

    Text Solution

    |

  5. In a process, 701 J of heat is absorbed by a system and 394 J of work ...

    Text Solution

    |

  6. The reaction of cyanamide, NH(2)CN(s), with dioxygen was carried out i...

    Text Solution

    |

  7. Calculate the number of KJ necessary to raise the temperature of 60.0 ...

    Text Solution

    |

  8. Calcualte the enthalpy change on freezing of 1.0 mole of water at 10.0...

    Text Solution

    |

  9. Enthalpy of combustion of carbon to CO(2) is -393.5 kJ mol^(-1). Calcu...

    Text Solution

    |

  10. Enthalpies of formation of CO(g), CO(2)(g),N(2)O(g) and N(2)O(4)(g) ar...

    Text Solution

    |

  11. Given N(2)(g)+3H(2)(g)rarr2NH(3)(g),Delta(r)H^(Ө)= -92.4 kJ mol^(-1...

    Text Solution

    |

  12. Calculate the standard enthalpy of formation of CH(3)OH(l) from the fo...

    Text Solution

    |

  13. Calculate the enthalpy change for the process C Cl(4)(g) rarr C(g)+4...

    Text Solution

    |

  14. For an isolated system, DeltaU = 0 , what will be DeltaS?

    Text Solution

    |

  15. For the reaction at 298 K 2A+B rarr C DeltaH=400 kJ mol^(-1) and D...

    Text Solution

    |

  16. For the reaction 2Cl(g) rarr Cl(2)(g), what are the signs of DeltaH ...

    Text Solution

    |

  17. For the reaction, 2A(g)+B(g) rarr 2D(g) DeltaU^(Θ)=-10.5 kJ and De...

    Text Solution

    |

  18. The equilibrium constant for a reaction is 10. What will be the value ...

    Text Solution

    |

  19. Comment on the thermodynamic stability of NO(g), given 1/2N(2)(g)+1/...

    Text Solution

    |

  20. Calculate the entropy change in surroundings when 1.00 mol of H(2)O(l)...

    Text Solution

    |