Question

The freezing point of water on Fahrenheit scale is:
 $
  A{.0^0} \\
  B{.212^0} \\
  C{.32^0} \\
  D{.37^0} \\
 $

Answer 1

Hint: To get this problem solved we need to use the relations in which Fahrenheit and Celsius both are involved and we will consider the freezing point of water as zero degree in Celsius then we will get the value in Fahrenheit. Doing this will solve your problem and will give you the right answer.

Complete step-by-step answer:
We know the freezing point of water in degrees Celsius is 0 degrees.
We will use the relation between C and F as:
 $ {\text{F = }}\dfrac{{\text{9}}}{{\text{5}}}{\text{C + 32}} $
If we put the value of C equal to zero as we know the freezing point of water in degree Celsius we will get the freezing point of water in Fahrenheit.
F = 0 + 32
F = 32
So we get the value of F as $ {32^0} $ .
Therefore the correct option is option C.
Celsius and Fahrenheit are two important temperature scales. The Fahrenheit scale is used primarily in the United States, while Celsius is used throughout the world. However, there is one point on the Fahrenheit and Celsius scales where the temperatures in degrees are equal. This is -40 degrees Celsius and
-40 degree Fahrenheit.
The Freezing point is the temperature of a liquid at which it changes its state from liquid to solid at atmospheric pressure.
At freezing point, these two phases viz. liquid and solid exist in equilibrium i.e. at this point both solid state and liquid state exist simultaneously. The freezing point of a substance depends upon atmospheric pressure.

Note: When you get to solve such problems you need to take something as a reference. As we have taken degree Celsius as a reference as we know freezing point of water in degree Celsius and with the help of that we have calculated the value of freezing point of water in Fahrenheit. Knowing this relation of C and F, $ {\text{F = }}\dfrac{{\text{9}}}{{\text{5}}}{\text{C + 32}} $ will help you further.