Place a small amount of water in an alminium can, heat it over a burner, while water inside the can quickly, invert the can over a cold water both. Explain what will happen.
When you place a small amount of water in an aluminum can and heat it over a burner, the water inside the can starts to boil and turn into steam. This happens because the heat from the burner is transferred to the water, raising its temperature and causing it to change from liquid to gas.
As the water continues to boil and turn into steam, it creates pressure inside the can. Since the can is sealed, the pressure starts to build up. Aluminum cans are typically quite strong, but the pressure can become too much for the can to handle.
When you quickly invert the can over a cold water bath, something interesting happens. The cold water cools the exterior of the can, which causes the steam inside the can to condense back into liquid water. This rapid condensation reduces the pressure inside the can.
As a result, the pressure inside the can becomes lower than the pressure outside, and this pressure difference causes the can to collapse or implode inward. It happens because the outside air pressure is stronger than the decreased pressure inside the can.
This demonstration showcases the effect of changing pressure caused by heating and cooling the can, leading to the collapse of the can when quickly inverted.