If 92 g Na reacts with water in open vessel at 300 K . What is the value of work done?

[Assume ideal nature of the gaseous product.]

For a reaction, $A(s) \rightleftharpoons B(s)+C(g)$ the set of all correct statements are (A) $K$ is independent of $[A]$. (B) $K$ is dependent on partial pressure of $C$ at a given temperature. (C) $\Delta H$ will be independent of temperature. (D) $\Delta H$ is independent of the catalyst addition.

On passing electric current over molten ionic hydrides of $s$-block elements,