A gas in a piston cylinder assembly undergoes an expansion process where PV¹.⁵= constant. The initial pressure is 3 bar, the initial volume is 0.1 m³ and the final volume is 0.2 m³. Determine the work done for this process.
a. +17.6 kJ
b. −17.6 kJ
c. −13.2 kJ
d. +13.2 kJ