Home
Class 7
PHYSICS
A glass stopper stuck in the neck of a b...

A glass stopper stuck in the neck of a bottle can be removed by pouring hot water on the neck of the bottle. Explain why?

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • HEAT

    ICSE|Exercise TEST YOURSELF (NUMERICALS )|7 Videos

  • HEAT

    ICSE|Exercise QUESTIONS|1 Videos

  • HEAT

    ICSE|Exercise TEST YOURSELF (SELECT THE CORRECT)|7 Videos

  • FORCE AND PRESSURE : MOTION

    ICSE|Exercise EXERCISES (SECTION II) (Picture Study) |4 Videos

  • LIGHT ENERGY

    ICSE|Exercise EXERCISE (PICTURE STUDY) |10 Videos

Similar Questions

Explore conceptually related problems

Often a ground glass stopper gets stuck in the neck of a glass bottle containing NaOH solution . This is due to ,

A tightly closed metal lid of a glass bottle can be opened more easily if it is put in hot water for some time. Explain.

The neck and bottom of a bottle are 3 cm and 15 cm in radius respectively. If the cork is pressed with a force 12 N in the neck of the bottle, then force exerted on the bottom of the bottle is :-

When the stopper of a bottle full of hydrogen chloride gas is opened there are fumes in air? Explain why?

A balloon fixed to the neck of a bottle gets inflated if the bottle is placed in a bowl of hot water. Why?

Why does a thick glass tumbler crack when boiling hot water is poured into it? Explain.

A thick glass tumbler cracks when boiling hot water is poured into it because :

Name the instrument which can measure accurately the following the internal diameter of the neck of a water bottle

A bottle of water is (3)/(7) th full. This water is poured into another bottle which is now (2)/(3) rd full. Find the ratio of the volume of the first bottle to the volume of the second bottle.

Give reason Why does the balloon inflate when the bottle is put in hot water?

ICSE-HEAT-TEST YOURSELF (SHORT/LONG ANSWER TYPE QUESTIONS)
  1. Iron rims are heated before they are fixed on the wooden wheels. Expla...

    Text Solution

    |

  2. Why are gaps left between successive rails on a railway track ?

    Text Solution

    |

  3. A glass stopper stuck in the neck of a bottle can be removed by pourin...

    Text Solution

    |

  4. Why is a cement floor laid in small pieces with gaps in between?

    Text Solution

    |

  5. One end of a steel girder in a bridge is not fixed, but is kept on rol...

    Text Solution

    |

  6. Describe one experiment to show that liquids expand on heating.

    Text Solution

    |

  7. State one application of thermal expansion of liquids.

    Text Solution

    |

  8. Describe an experiment to show that air expands on heating.

    Text Solution

    |

  9. An empty glass bottle is fitted with a narrow tube at its mouth. The o...

    Text Solution

    |

  10. State which expands more, when heated to the same temperature : solid,...

    Text Solution

    |

  11. Name the three modes of transfer of heat.

    Text Solution

    |

  12. Name the mode of transfer of heat in the solid

    Text Solution

    |

  13. Name the mode of transfer of heat in the liquid

    Text Solution

    |

  14. Name the mode of transfer of heat in the gas

    Text Solution

    |

  15. Name the mode of transfer of heat in the vacuum

    Text Solution

    |

  16. What are good and bad conductors of heat ? Give two examples of each.

    Text Solution

    |

  17. Name a liquid which is a good conductor of heat.

    Text Solution

    |

  18. Name a solid which is a good conductor of heat.

    Text Solution

    |

  19. Select good and bad conductors of heat from the following: copper, mer...

    Text Solution

    |

  20. Why is an oven made of double walls with the space in between filled w...

    Text Solution

    |