Question

Sodium metal has a very wide liquid range, melting point at 98⁰C and boiling point at 892⁰C. What is the liquid range in Kelvin

Answer 1

The Kelvin scale is related with Celsius by relation

$$T=t+273$$

Hence,

$${\rm 98^{\circ} C}<t<{\rm 892^{\circ} C}\\ {\rm 371\;K}<T<{\rm 1165\;K}$$