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

Answer : Kelvin is the SI unit of temperature, 0° C =273.16 K. For convenience, we take 0° C = 273 K
after rounding off the decimal. To  convert a temperature on the Celsius scale to the Kelvin scale we have to add 273 to the given temperature.

(a) 25°C = 25 + 273 = 298 K

(b) 373°C = 373 + 273 = 646 K

This is an answered question from Chapter 1. MATTER IN OUR SURROUNDINGS of CBSE Class 9th Science

Check for Complete Exercise Solution for Chapter 1. MATTER IN OUR SURROUNDINGS | CBSE Class 9th Science