MCQ
Maximum density of $\mathrm{H}_2 \mathrm{O}$ is at the temperature
- A$32^{\circ} \mathrm{F}$
- ✓$39.2^{\circ} \mathrm{F}$
- C$42^{\circ} F$
- D$4^{\circ} \mathrm{F}$
✓
Answer
Correct option: B.
$39.2^{\circ} \mathrm{F}$
(b) Maximum density of water is at $4^{\circ} \mathrm{C}$ Also $\frac{C}{5}=\frac{F-32}{9} \Rightarrow \frac{4}{5}=\frac{F-32}{9} \Rightarrow F=39.2^{\circ} \mathrm{F}$
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