Answer: See explanation
Explanation:
To convert to Celcius scale from Kelvin, the formula to use is:
Temperature in Celcius = Temperature in Kelvin - 273
a. 450k
Temperature in Celcius = Temperature in Kelvin - 273
= 450 - 273
= 177°Celcius
(b) 273 k
Temperature in Celcius = Temperature in Kelvin - 273
= 273 - 273
= 0°C
(c) 73 k
Temperature in Celcius = Temperature in Kelvin - 273
= 73 - 273
= -200°C
