Question

In anomalous expansion of water, at what temperature, the density of water is maximum?

• A. $4^{o}C$
• B. $<4^{o}C$
• C. $>4^{o}C$
• D. ${10}^{o}C$

Answer 1

The correct option is A $4^{o}C$

Water never has an absolute density because its density varies with temperature. Water has its maximum density of $1g/c{m}^3$ at $4^{o}C$. When temperature changes from either greater or less than $4^{o}C$, the density becomes less than $1g/c{m}^3$.