\(\Delta U = w\)
\(1 \times 20 \times\left[ T _2-300\right]=-3000\)
\(T _2-300=-150\)
\(T _2=150\,K\)
$Pt ( s )\left| H _{2}( g )\right| H ^{+}( aq ) \| Ag ^{+}( aq ) \mid Ag ( s )$
$E _{\text {Cell }}^{0}=+0.5332 \,V$.
$\Delta_{ f } G ^{0}$ નું મૂલ્ય..........$k\,J\, mol ^{-1}$ છે. (નજીકનો પૂર્ણાંક)