Advertisements
Advertisements
प्रश्न
An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into the water. Explain the reason.
Advertisements
उत्तर
When the bottle is heated, bubbles of air are seen escaping into the water. This happens because the air present in the glass bottle expands on heating and tries to escape out through the tube into the water.
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
All solids expand by the same amount when heated to the same rise in temperature.
Fill in the blank
The temperature of boiling water is _______
Fill in the blank
Liquids expand _______ than the solids.
What do you understand by thermal expansion of a substance ?
Why is a cement floor laid in small pieces with gaps in between?
Name a liquid which is a good conductor of heat.
Why do we use cooking utensils made up of copper.
Why is a tea kettle provided with an ebonite handle?
During day time, air blows from ______ to ______.
______ is greater for liquids than solids and it is maximum in gases.
