Chapter 5, Problem 44A

Interpretation Introduction

Interpretation: The normal boiling point of water is in $°\text{F}$ and $°\text{C}$ needs to be determined.

Concept introduction: To convert one unit into another then first needs to choose a conversion factor, this cancels the units and omits the units in the result. The relation between the scale of Fahrenheit and Celsius is as follows:

  ${\text{T}}_{\text{°F}}\text{=1}\text{.80}\left({\text{T}}_{\text{°C}}\right)\text{+32}$

Answer to Problem 44A

Standard boiling point of water is $\text{212°F,}\text{or100°C}$ .

Explanation of Solution

  $\text{100}°\text{C}$ is standard boiling point of water. Conversion of Celsius to Fahrenheit is as follows:

Conversion of $-40°\text{C}$ to $°\text{F}$ is as follows:

  $\begin{array}{c}{T}_{°F}=1.80\left(T_{°C}\right)+32\\ =1.80\left(100°\text{C}\right)+32\\ =180+32\\ =212°\text{F}\end{array}$

Thus the normal boiling point of water is $\text{212°F,}\text{or100°C}$ .

Conclusion

Thus, standard boiling point of water is $\text{212°F,}\text{or100°C}$ .