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.
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 water. Explain the reason.
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When the bottle is heated, air in it expands and escapes the water in the form of bubbles.
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When the bottle is heated, bubbles of air are seen escaping into the water. This happens because the air present in glass bottle expands on heating and tries to escape out through the tube into the water.
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