what will happen towell stoppered bottle full of water left in deep freez overnight
Density decreases because volume expands.
And because volume expands it is more than likely that the bottle will explode if the container was completely filled.
If a well-stoppered bottle full of water is left in a deep freeze overnight, the water inside the bottle will freeze and expand. This expansion may cause the bottle to crack or even burst, causing a potential mess in the freezer.
To understand why this happens, we need to know that water is one of the few substances that expands when it freezes. When the temperature drops below the freezing point of water (0 degrees Celsius or 32 degrees Fahrenheit), the water molecules slow down and form a crystal lattice structure. This expansion occurs because the water molecules arrange themselves in a more ordered pattern, taking up more space.
When the water inside the bottle freezes and expands, it exerts pressure on the walls of the bottle. If the bottle is not designed to withstand such expansion, it may crack or break, potentially causing leaks or damaging the freezer.
To prevent this from happening, it's advisable to leave some space in the bottle for expansion when freezing water. It's also recommended to use containers specifically designed for freezing and to avoid completely sealing the container to allow the water to expand without causing damage.