Question

The boiling point of water in Fahrenheit scale is:

• A. ${412}^{\circ }F$
• B. ${310}^{\circ }F$
• C. ${212}^{\circ }F$
• D. ${512}^{\circ }F$

Answer 1

The correct option is C ${212}^{\circ }F$

We know boiling point of water in Celsius scale is ${100}^{\circ }C$.
Let $C$ be the temperature in Celsius scale and $F$ be the temperature in Fahrenheit scale.
To convert from Celsius to Fahrenheit scale, we use the formula,
$C=\frac{5}{9}(F-32)$
$\Rightarrow 100=\frac{5}{9}(F-32)$
$\Rightarrow \frac{100\times 9}{5}=(F-32)$
$\Rightarrow 180=F-32$
$\Rightarrow F=180+32={212}^{\circ }F$