$2\mathrm{.}0$ mol of an ideal gas undergoes isothermal expansion from Pi$=$

$25\mathrm{.}0$ bar and Vi$=4\mathrm{.}50$ L to Pf$=4\mathrm{.}50$ bar along $2$ different paths

$($i$)$ reversible expansion $($ii$)$ irreversible expansion.

Calculate the work for each process.