In a closed tube, there is a drop of mercury exactly in the middle. the tube was heated at one end.
| January 15, 2021 | education
In a closed tube, there is a drop of mercury exactly in the middle. the tube was heated at one end. Explain what will happen to the droplet of mercury.
When one end of the tube is heated, a drop of mercury will move towards the unheated end of the tube. Since the tube is closed, and the air expands when heated, the air pressure in the heated end of the tube increases and displaces the mercury droplet until the air pressure at both ends of the tube equilibrates.
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