Question

Write the reaction of thermal decomposition of sodium azide.

Answer 1

Thermal decomposition of sodium azide gives dinitrogen $\left(N_2\right)$) gas and $Na$ metal.
Decomposition reaction of sodium azide can be written as:

$2Na{N}_3\underset{240-{365}^{\circ }C}{\overset{\Delta }{\to }}2Na+3N_2$
Sodium azide

Final answer:

$2Na{N}_3\underset{240-{365}^{\circ }C}{\overset{\Delta }{\to }}2Na+3N_2$
sodium azide