Convert the following temperatures to the Celsius scale. (a) 293 K (b) 470 K.

Answer: 

We know the relationship between temperature in Kelvin and in degree Celsius, that is

Temperature in °C + 273 = Temperature in Kelvin  

Let us substitute the value in the equation above and then calculate the other value.

We have to subtract 273 from the given temperature to get a temperature on the Kelvin scale to Celsius scale.

a)293 K = (293 – 273)

= 20 °C.

b)470 K = (470 – 273)

= 197 °C.