The cycle in the figure shows four processes. Process a is an isobaric expansion at $330\mathrm{kPa}$. Process b is a constant volume reduction in pressure to $100\mathrm{kPa}$. Process c returns the gas to its original state where the volume is $100{\mathrm{cm}}^{3}$. If the gas does $15\mathrm{J}$ of work each cycle, what is the maximum volume of the gas?