How is polorization corrected in a simple cell

hydrogen bubbles rise to the surface of the electrolyte and escape into the air, some remain on the surface of the anode. If enough bubbles remain around the anode, the bubbles form a barrier that increases internal resistance.

  The new volume  of the gas  is  131.43   liters
    
                    calculation

This is calculated  by use of combined  gas law equation

that is p1V1/T1 = P2V2/T2

P1 = 5.50  atm
V1= 121 L
T1= 293  k
P2=   5.15  atm
T2 = 298 K
V2 =?

by  making V2 the   subject of the  formula

V2=  T2 P1V1/ P2T1

V2  is therefore =  (298 k x 5.50  atm   x121 L)/  (  5.15  atm  x 293 k)  = 131.43  L