NCERT Questions – 2

Convert the following temperatures to the kelvin scale.

To convert a temperature from the Celsius (°C) scale to the Kelvin (K) scale, we use the formula:

$$T(K)=T(°C)+273$$

Question (a)

Convert 25°C to Kelvin

 

Using the formula:

T(K)=25+273

$$T(K)=298K$$

So, 25°C = 298 K.

Question (b)

Convert 373°C to Kelvin

 

Using the formula:

$$T(K)=373+273$$

T(K)=646K

So, 373°C = 646 K.