Question

When Fe(s) is dissolved in aqueous hydrochloric acid in a closed vessel, the work done is ............ .

Answer 1

Work done is zero for the dissolution of Fe(s) in aq. HCl for closed vessel. This is because, here no change of volume occurs.

W = -PΔV

Since, ΔV=0

Therefore, W=0

Hope this helps you

Answer 2

Fe(s) is dissolved in aqueous hydrochloric acid in a closed vessel, the work done is Zero.

Explanation:

The chemical reaction between Fe and HCl is as follows:

$F e(s)+2 H C l(a q) \rightarrow F e C l_{2}(a q)+H_{2}(g)$

In closed vessel the work done will be zero. The reason for the zero work done is, there is no change in volume occurs.

Therefore, Fe(s) is dissolved in aqueous hydrochloric acid in a closed vessel, the work done is Zero.