The coldest temperature ever recorded in Iowa was −47 °F on February 3, 1998. Convert this temperature to Kelvins and degrees Celsius.

Solution 72P

Here, we are going to convert -47oF to Kelvins(K) and degree Celsius(oC).

Step 1:

Fahrenheit(oF), Kelvin(K) and degree Celsius(oC) are the three common units of temperature.

The relationship between the three scales of temperature is given below:

C/5 = (F-32)/9 = (K-273)/5 ------(1)

Step 2:

Converting Fahrenheit(oF) to degree Celsius(oC)

From equation (1), we get,

C/5 = (F-32)/9

C/5 = (-47 - 32)/9 [substituting the fahrenheit temperature]

C/5 = (-79)/9

C = [(-79)/9] x 5

C = -43.89