PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo- Take a boiling tube.
- Stretch a balloon tightly over the neck of the tube.
- You can use a tape to make it tight.
- Pour some hot water in a beaker.
- Insert the boiling tube with the balloon in the hot water.
- Observe for \(2–3\) minutes for any change in shape of the balloon.
- Take the tube out, let it cool down to the room temperature.
- Take some ice-cold water in another beaker and place the tube with the balloon in cold water for \(2–3\) minutes.
- Observe the change in the shape of the balloon.
What makes the balloon inflated when the boiling tube is placed in hot water?
The balloon gets since the hot air present inside the boiling tube the air around it. This heating the air and the balloon by filling the space inside.
Why is the same balloon deflated when the tube is kept in cold water?
The gases that occupy more space and thus, become . When the warm air rises from a particular place, a is created and the air rushes into that space and fills it up.
While the balloon kept in cold water changes its shape. The balloon gets deflated since the air present inside the bottle .
Register for free to see more content