Question

2. Convert the following temperatures to the Kelvin scale.
(b) 373°C.
(a) 25°C​

Answer 1

To convert Celsius into kelvin we have to add it by 273 degree

1. 373 + 273 = 646 K

So 373 degree is 646 Kelvin.

2. 25 + 273 = 298 K

So 25 degree is 298 Kelvin.




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Answer 2

Answer:

Converted the following temperatures to the Kelvin scale.

(b) $373^0C = 646.15K$

(a) $25^0C = 298.15K$

Explanation:

• If $T_K$is the temperature on the Kelvin scale and $T_C$is the temperature on the Celcius scale, we can use the following equation to convert a temperature on the Celcius scale to the temperature on the Kelvin scale.

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

   

• From question(b),

       $T_C = 373^0C$

       Substitute the above value into equation (2)

       $T_{K}=373+273.15$

             $=646.15 K$

• In question (a), it is given that,

       $T_C = 25^0C$

       Substitute the above value into equation (1)

       $T_{K}=25+273.15$

             $=298.15K$