Question

What is the balanced thermochemical equation for the formation of sodium chloride?

Answer 1

See below.

Explanation:

The enthalpy of formation of a compound is the change of enthalpy when 1 mol of the compound is formed from its constituent elements, with all substances in their most stable states at 25 °C and at a pressure of 1 bar.

Thus, the balanced thermochemical equation for the reaction is

`"Na(s)" + 1/2"Cl"_2"(g)" → "NaCl(s)"`