Question

Maximum density of H2O is at the temperature

• A. 32°F
• B. 39.2°F
• C. 42°F
• D. 4°F

Answer 1

The correct option is B

39.2°F

Maximum density of water is at $4^{\circ }C$

Also $\frac{C}{5}=\frac{F-32}{9}\Rightarrow \frac{4}{5}=\frac{F-32}{9}\Rightarrow F={39.2}^{\circ }F$