b
સમોષ્મી પ્રક્રિયા  દરમિયાન થતું કાર્ય \(W\,\, = \,\,\frac{{\mu R({T_1} - {T_2})}}{{\gamma  - 1}}\) જ્યાં,

\(\gamma \,\, = \,\frac{{{C_P}}}{{{C_V}}}\,\,\,\)

\(\therefore \,\,\gamma \, - \,1\,\, = \,\,\frac{{{C_P}}}{{{C_V}}}\,\, - \,\,{C_V}\,\,\,\,\therefore \,\,\gamma \, - \,1\,\, = \,\,\frac{{{C_P} - {C_V}}}{{{C_V}}}\,\, = \,\,\frac{R}{{{C_V}}}\,\,\,\,\,\)

\(\therefore \,W\,\, = \,\,\frac{{\mu R({T_1} - {T_2})}}{{\frac{R}{{{C_V}}}}}\,\, = \,\,\mu {C_V}({T_1} - {T_2})\)