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When a liquid is heated in a glass flask, its level at first falls then rises. Explain this observation

      

When a liquid is heated in a glass flask, its level at first falls then rises. Explain this observation.

  

Answers


John
The level falls due to expansion of glass that receives the heat first. When the liquid finally receives the heat, it expands and the level starts to rise up.
johnmulu answered the question on February 6, 2017 at 09:37


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