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.
Kerosene contracts on heating.
Write true or false for a given statement.
Land and sea breezes are convection currents of cold and warm air.
Fill in the blank
Gases expand _______ than the liquids.
Why is a cement floor laid in small pieces with gaps in between?
Name a solid which is a good conductor of heat.
Why are quilts filled with fluffy cotton?
In ice cubes, the force of attraction between the water molecules is ______.
When we heat them the force of attraction between the molecules decreases and the ice cubes become ______.
______ is greater for liquids than solids and it is maximum in gases.
Explain the following effects of heat.
Expansion
