Question

A beaker is completely filled with water at 4°C. It will overflow if

• A. cooled below 4°C.
• B. heated above 4°C.
• C. both heated above and cooled below 4°C respectively.
• D. None of the above

Answer 1

The correct option is C both heated above and cooled below 4°C respectively.

Water has minimum volume at 4°C, so if the water is heated above 4°C or cooled below 4°C, its volume increases. In other words, it expands and overflows in both the cases.