Home
Class 9
CHEMISTRY
Why does the temperature of a substance ...

Why does the temperature of a substance remain constant during its melting point or boiling point ?

Text Solution

Verified by Experts

The temperature of a substance remains constant during melting and boiling points till the completion of melting and boiling. It is because substance makes use of latent heat of fusion to overcome force of attraction between particles of solid to change into liquid during melting and latent heat of vaporisation to overcome force of attraction between particles of liquid to change into vapours during boiling.
Therefore, temperature remains constant.
Promotional Banner

Topper's Solved these Questions

  • IS MATTER AROUND US PURE

    NCERT EXEMPLAR|Exercise Is Matter Around Us Pure|42 Videos

  • STRUCTURE OF THE ATOM

    NCERT EXEMPLAR|Exercise Structure Of The Atom|43 Videos

Similar Questions

Explore conceptually related problems

Why does the temperature remain constant during the melting of ice even though heat is supplied continuously ?

Define melting and boiling points.

Why does the temperature remain constant during the boiling of water even though heat is supplied continuously ?

Why does the boiling temperature of liquid becomes constant once it starts boiling?

NCERT EXEMPLAR-MATTER IN OUR SURROUNDINGS-Matter In Our Surroundings
  1. The boiling order of boiling points of diethyl ether, acetone and n-bu...

    Text Solution

    |

  2. Which condition out of the following will increase the evaporation of ...

    Text Solution

    |

  3. In which of the following conditions, the distance between the molecul...

    Text Solution

    |

  4. A sample of water under supply was found to boil at 102^(@)C at normal...

    Text Solution

    |

  5. A student heats a beaker containing ice and water. He measures the tem...

    Text Solution

    |

  6. Fill in the blanks (a) Evaporation of a liquid at room temperature l...

    Text Solution

    |

  7. Match the physical quantities given in Column A to their SI units give...

    Text Solution

    |

  8. The non-SI and SI units of some physical quantities are given in Colum...

    Text Solution

    |

  9. Osmosis is a special kind of diffusion'. Comment.

    Text Solution

    |

  10. Classify the following into osmosis/diffusion. (a) Swelling up of a ...

    Text Solution

    |

  11. Water as ice has a cooling effect, whereas water as steam may cause se...

    Text Solution

    |

  12. Alka was making tea in a kettle. Suddenly she felt intense heat from t...

    Text Solution

    |

  13. A glass tumbler containing hot water is kept in the freezer compartmen...

    Text Solution

    |

  14. Look at the figure and suggest in which of the vessels A, B,C, or D, t...

    Text Solution

    |

  15. (a) Conversion of solid of vapour is called sublimation . Name the te...

    Text Solution

    |

  16. You are provided with a mixture of naphthalene and ammonium chloride b...

    Text Solution

    |

  17. It is a hot summer day, Priyanshi and Ali are wearing cotton and nylon...

    Text Solution

    |

  18. You want to wear your favourite shirt to a party, but the problem is t...

    Text Solution

    |

  19. Comment on the following statements. (a) Evaporation produces coolin...

    Text Solution

    |

  20. Why does the temperature of a substance remain constant during its mel...

    Text Solution

    |