Question
At 25∘C,50 g of iron reacts with HCl to form FeCl2. The evolved hydrogen gas expands against a constant pressure of 1 bar. The work done by the gas during this expansion is J.
(Round off to the nearest integer).
[Given: R=8.14 J mol−1 K−1.
Assume, hydrogen is an ideal gas]
[Atomic mass of Fe is 55.85 u]