Question

Why is it not recommended to fill the bottle up to the top?

Answer 1

1. Liquids expand more as compared to solids due to the less closely packed structure of molecules in liquids.
2. A bottle should never be filled up to the top. Because, if the liquid inside it becomes too hot, the liquid will expand accordingly.
3. This can cause the explosion of the bottle.
4. Similarly, the petrol tank in a car is also not filled up to the rim.