Problem $10\mathrm{.}024-$ Net work for an ideal gas carnot cycle

Consider a Carnot cycle executed in a closed system with $0\mathrm{.}800$ kg of air. The temperature limits of the cycle are $300$ and $1100$ K $,$ and the minimum and maximum pressures that occur during the cycle are $20$ and $3000$ kPa $.$ Assuming constant specific heats, determine the net work output per cycle. The properties of air at room temperature are $c_p=1\mathrm{.}005k\frac{J}{k}g*K,c_v=0\mathrm{.}718k\frac{J}{k}g*K,R=0\mathrm{.}287k\frac{J}{k}g*K,$ and $k=1\mathrm{.}4$

The net work output per cycle is kJ$.$