• # question_answer One gm mol of a diatomic gas $(\gamma =1.4)$ is compressed adiabatically so that its temperature rises from ${{27}^{o}}C$ to ${{127}^{o}}C$. The work done will be A) 2077.5 joules      B) 207.5 joules C) 207.5 ergs D) None of the above

[a] $W=\frac{R}{\gamma -1}({{T}_{1}}-{{T}_{2}})$      $=\frac{8.31\times \{(273+27)-(273+127)\}}{1.4-1}=-2077.5\ joules$