Question

NCERT CLASS IX - Science Textbook
Chapter 1 - Matter in Our Surroundings

Convert the following temperatures to Kelvin scale.

(a) 25°C
(b) 373°C

Answer 1

 Melting point of ice is 273°  
SO,
(a)25°C= 25+273=298K
(b)373°C=373+273=646k 

Answer 2

To convert celsius to kelvin, you need to add 273 to the celsius scale.
(a) 25°C = 25 + 273 = 298 K
(b) 373°C = 373 + 273 = 646 K

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