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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 water. Explain the reason.
उत्तर
When the bottle is heated, the air in it expands and the solubility of gases in it decreases which escapes from water in the form of bubbles.
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