MCQ
A beaker is completely filled with water at $4°C$. It will overflow if
- AHeated above $4°C$
- BCooled below $4°C$
- ✓Both heated and cooled above and below $4°C$ respectively
- DNone of the above
✓
Answer
Correct option: C.
Both heated and cooled above and below $4°C$ respectively
c
(c) Water has maximum density at $4°C$, so if the water is heated above $4°C$ or cooled below $4°C$ density decreases i.e. volume increases.
(c) Water has maximum density at $4°C$, so if the water is heated above $4°C$ or cooled below $4°C$ density decreases i.e. volume increases.
In other words, it expands so it overflows in both the cases.
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