Chemistry - Thermodynamics - I Question with Solution | TestHub

${\mathrm{W}}_{\mathrm{irr}}=-{\mathrm{P}}_{\text{ext }}\frac{\mathrm{R}\left[{\mathrm{P}}_1{\mathrm{T}}_2-{\mathrm{P}}_2{\mathrm{T}}_1\right]}{{\mathrm{P}}_1{\mathrm{P}}_2}$ During expansion in vaccum ${\mathrm{P}}_{\text{ext }}=0$ $\therefore$ work done $=0$.