Question

Express 27°C in Kelvin. 

(1) 100 K 

(2) 200 K 

(3) 300 K 

(4) 400 K

Answer 1

Correct option is (3) 300 K 

Relation between Kelvin & Celsius scale

If C is the temperature in Celsius scale, it can be converted into Kelvin scale K, by adding 273.15.

i.e; \(^\circ C + 273 .15 = K\)

Conversion

It is given that temperature \(= 27^\circ C\)

In Kelvin scale :

27 + 273.15 = K

K = 300.15

Therefore in Kelvin scale \(27 ^\circ C = 300 . 15 \,K\).