Home
Class 11
CHEMISTRY
A system absorbs 20kJ heat and also does...

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

A

Increases by `10kJ`

B

Decreases by `10kJ`

C

Increases by `30 kJ`

D

Decreases by `30kJ`

Text Solution

Verified by Experts

`DeltaU = q +w = 20 - 10 = 10 kJ`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Ex 6.3|27 Videos
  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Ex 6.4|16 Videos
  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Ex 6.1|26 Videos
  • STOICHIOMETRY

    CENGAGE CHEMISTRY|Exercise Archives Subjective|33 Videos

Similar Questions

Explore conceptually related problems

A system absorbs 10 kJ of heat and does 4 kJ of work. The internal energy of the system

A system absorbs 10 kJ of heat and does 4 kJ of work. The internal energy of the system

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

A system absorbs 10 kJ of heat and does 4 kJ of work the internal energy

A certain reaction is exothermic by 220kJ and does 10kJ of work. What is the change is the internal energy of the system at constant temperture?

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

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 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

CENGAGE CHEMISTRY-THERMODYNAMICS-Ex 6.2
  1. The bond enthalpies of H-H and CI-CI are 430 and 242 kJ mol^(-1), resp...

    Text Solution

    |

  2. Two moles of a perfect gas undergo the following processes: a. A rev...

    Text Solution

    |

  3. The enthalpy change (DeltaH) for the reaction, N(2(g))+3H(2(g)) rarr 2...

    Text Solution

    |

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

    Text Solution

    |

  5. A gas present in a cylinder fitted with a frictionless pistion expands...

    Text Solution

    |

  6. Calcualte q, w, DeltaU, and DeltaH for the reversible isothermal expan...

    Text Solution

    |

  7. A swimmer coming out from a pool is covered with a film of water weig...

    Text Solution

    |

  8. Calculate q,w,DeltaU, and DeltaH for this isothermal reversible expans...

    Text Solution

    |

  9. A sample of argon gas at 1atm pressure and 27^(@)C expands reversibly ...

    Text Solution

    |

  10. An insulated contains 1mole of a liquid, molar volume 100mL at 1bar. W...

    Text Solution

    |

  11. 5mol of an ideal gas at 27^(@)C expands isothermally and reversibly fr...

    Text Solution

    |

  12. 10mol of an ideal gas confined to a volume of 10L is released into atm...

    Text Solution

    |

  13. A system absorbs 20kJ heat and also does 10kJ of work. The net interna...

    Text Solution

    |

  14. One moles of an ideal gas which C(V) = 3//2 R is heated at a constant ...

    Text Solution

    |

  15. A cyclic process ABCD is shown in the P-V diagram. Which of the follow...

    Text Solution

    |

  16. A thermodynamic process is shown in the following figure. The process ...

    Text Solution

    |

  17. In which of the following indicator diagrams gives below do AB,BC, and...

    Text Solution

    |

  18. The pressure -temperature (P-T) phase diagram shown below corresponds ...

    Text Solution

    |

  19. An ideal gas undergoes isothermal expansion followed by heat removel a...

    Text Solution

    |

  20. Four curves A,B,C and D are drawn in figure for a given amount of gas....

    Text Solution

    |