Home
Class 12
CHEMISTRY
The temperature of the system decreases ...

The temperature of the system decreases in an

A

adiabatic compression

B

isothermal compression

C

isothermal expansion

D

adiabatic expansion.

Text Solution

Verified by Experts

The correct Answer is:
d
When a real gas is forced through a porous plug into a region of low pressure, it is found that due to expansion, the gas on the side of low pressure gets cooled. The phenomenon of producing lowering of temperature when a gas is made to expand adiabatically from a region of high pressure into a region of low pressure is known as Joule-Thomson effect.
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2003

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

  • KARNATAKA CET 2006

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos
KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2005-CHEMISTRY
  1. For a system in equilibrium, /\G = 0 under conditions of constant .......

    Text Solution

    |

  2. Molar heat of vaporisation of a liquid is 6 kJ mol^(-1). If the entrop...

    Text Solution

    |

  3. The temperature of the system decreases in an

    Text Solution

    |

  4. A buffer solution has equal volumes of 0.2 M NH(4)OH and 0.02 M NH(4) ...

    Text Solution

    |

  5. The hydrogen electrode is dipped in a solution of pH 3 at 25^@C. The p...

    Text Solution

    |

  6. 20 ml of 0.5 N HCl and 35 ml of 0.1 N NaOHare mixed. The resulting sol...

    Text Solution

    |

  7. Corrosion of iron is essentially an electrochemical phenomenon where t...

    Text Solution

    |

  8. The standard electrode potential is measured by

    Text Solution

    |

  9. A precipitate of AgCl is formed when equal volumes of the following ar...

    Text Solution

    |

  10. Which one of the following defects in the crystals lowers its density?

    Text Solution

    |

  11. Aradioactive isotope has t(1//2) of 10 days. If today 125 g of it is l...

    Text Solution

    |

  12. Which of the following cannot be accelerated?

    Text Solution

    |

  13. In which of the following nuclear reactions neutron is emitted?

    Text Solution

    |

  14. Molarity of 0.2 N H(2) SO(4) is

    Text Solution

    |

  15. In the equation of state of an ideal gas PV = nRT,the value of the uni...

    Text Solution

    |

  16. A comerical sample of hydrogen peroxide is labelled as 10 volume its ...

    Text Solution

    |

  17. Activated charcoal is used to remove colouring matter from pure substa...

    Text Solution

    |

  18. When plants and animals decay, the organic nitrogen is converted into ...

    Text Solution

    |

  19. Three dimensional molecules with cross links are formed in the case of...

    Text Solution

    |

  20. Sucrose molecule is made up of

    Text Solution

    |