Question

what is the reaction between kelvin scale and Celsius scale of temperature

Answer 1

Zero on the Celsius scale (0℃) is now defined as the equivalent to 273.15K, with a temperature difference of 1 deg C equivalent to a difference of 1K, meaning the unit size in each scale is the same. 

Answer 2

temp on Kelvin scale=temp in celcius scale
+273 . hope you like it.