The formula C= 5/9 (F-32) gives the temperature in degrees celsius for a given temperature in degrees Fahrenheit, the temperature in degrees celsius would be 20° Celcius the temperature is 68 degrees Fahrenheit.
What is the kelvin scale of temperature?
It is a scale of temperature used to measure the temperature, the kelvin scale of temperature is also known as the absolute scale of temperature.
The Standard International unit of thermodynamic temperature is the kelvin, often known less frequently as the degree Kelvin. The formal definition of one kelvin is 1/273.16 of the thermodynamic temperature of pure water's triple point.
It is impossible to have kelvin temperature in a negative value.
For the given problem for calculating the temperature in degrees Celcius
formula C= 5/9 (F-32) is used where C is the temperature in degrees Celcius and F is the temperature in degrees of Fahrenheit
As the given temperature in the fahrenheit scale is 68°
C= 5/9(68-32)
C= 20° Celcius
Thus, the temperature in degrees Celcius comes out to be 20°.
Learn more about the kelvin scale of temperature from here
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