Question

Convert the following temperature into Kelvin scale. -23 degree celcius , 450degree celcius?

Answer 1

-23℃=273+(-23)

=273-23

=250K

450℃=273+450

=723K

Answer 2

Answer:

Converted the following temperatures into the Kelvin scale.

a) $-23^0C = 250.15K$

b) $450^0C = 723.15K$

Explanation:

• Let $T_K$be the temperature on the Kelvin scale and $T_C$be the temperature on the Celcius scale,
• we have the expression for  

       converting a temperature on the Celcius scale to the temperature on the Kelvin scale is as follows,

        $T_{K}=T_{C}+273.15$         ...(1)      

 

  (a)    In question, it is given that,

          $T_C = -23^0C$

          Substitute the above value into equation (1)

          $T_{K}=-23+273.15$ 

                  $=250.15K$

    (b)    In question, it is given that,

             $T_C = 450^0C$

             Substitute the above value into equation (1)

            $T_{K}=450+273.15$ 

                  $=723.15K$