Chapter U3.4, Problem 5E

Interpretation Introduction

Interpretation : A temperature of ${\text{-40}}^{\text{0}}\text{C}$ is to be converted to ⁰F.

Concept Introduction : One can convert a temperature in Celsius to a temperature in Fahrenheit by using a mathematical formula;

  $\text{F=}\frac{\text{9}}{\text{5}}\text{C+32}$

Answer to Problem 5E

Temperature of ${\text{-40}}^{\text{0}}\text{C}$ is equal to ${\text{-40}}^{\text{0}}\text{F}$

Explanation of Solution

Given information:

A temperature ${\text{-40}}^{\text{0}}\text{C}$ of is given.

To compare the temperatures, one has to convert Celsius to Fahrenheit by using the formula as given below.

  $\text{F=}\frac{\text{9}}{\text{5}}\text{C+32}$

Substituting the given temperature of -40° C,

  $\text{F=}\frac{\text{9}}{\text{5}}{\text{(-40)+32=-40}}^{\text{0}}\text{F}$

So, the given temperature of ${\text{-40}}^{\text{0}}\text{C}$ is equal to ${\text{-40}}^{\text{0}}\text{F}$

Conclusion

At -40 degrees, Celsius and Fahrenheit scale measure same.