The correct option is A I II0−606
Fe(s)56 g=1 mol+H2SO4(aq)→FeSO4(aq)+H2(g)1 mol H2
Final volume of gas is due to 1 mole of H2
(I) When the vessel is closed,
△V=0, i.e. volume is constant.
(II) For an open vessel,
Given, T=303 K
Expression for P-V or Mechanical Work:
If the volume of the system is decreasing (compression), the mechanical work is being done on the system by the surrounding.
If the volume of the system is increasing (expansion), the mechanical work is being done by the system on the surrounding.
Work done on the system = Work done by the surrounding
Work done on the system=Fsurr.dsurr
Work done on the system=(Pext×A).(−dx)
Where Fsurr= Force of surrounding
dsurr= displacement of surrounding
Pext= External pressure
Case 1: Expansion
Case 2: Compression
Case 3: Isochoric Process
Case 4: Free Expansion