Question

What is the temperature, in degrees Celsius, that is equivalent to a temperature of ${{40}^{\circ }}F$?

Answer 1

Hint: The temperature given in the question is in Fahrenheit. The formula that can be used to solve this question will be:
$F=\left( \dfrac{9}{5} \right)C+32$
Where F is the temperature in degrees Fahrenheit and C is the temperature in degrees Celsius.

Complete answer:
There are many properties that are used in studying the chemistry of a substance, i.e., pressure, volume, entropy, reaction mechanism, enthalpy, free energy, type of bonding, etc. So, the temperature is also one of the important properties. There are three scales on which we can measure the temperature of any substance, i.e., Degrees Celsius, Degrees Fahrenheit, and Kelvin.
All the forms are interconvertible, by using a specific formula.
The temperature given in the question is in Fahrenheit. The formula that can be used to solve this question will be:
$F=\left( \dfrac{9}{5} \right)C+32$
Where F is the temperature in degrees Fahrenheit and C is the temperature in degrees Celsius.
This formula can be converted as:
$C=\dfrac{5}{9}(F-32)$
Now putting the value of Degrees Fahrenheit we can directly get the value of Degree Celsius. The given value in the question is ${{40}^{\circ }}F$, so putting this value in the formula, we get:
 $C=\dfrac{5}{9}(40-32)$
$C=\dfrac{5}{9}\text{ x 8}$
$C=4.44$
We get 4.44 as the value of C, so 4.44 degrees Celsius is equal to 40 degrees Fahrenheit.

Note:
Other conversions that are most used in chemistry are degrees Celsius to Kelvin, this can be done by adding 273 to the given temperature in degrees Celsius, then we get the given temperature in Kelvin.