NCERT Solution Class IX Science Matter in Our Surroundings Question 1 (Ex 1.5)

Question 1:

Convert the following temperatures to Celsius scale.

(a) 293 K                                  (b) 470 K.

Answer:

Kelvin is an SI unit of temperature, where 0°C = 273.16 K (approximately 273 K)

(a) 300 K = (293 − 273) °C = 20 °C

(b) 573 K = (470 − 273) °C = 197 °C

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