Heating a sealed insulated-wall vessel

A rigid vessel contains $2.20\,\mathrm{kg}$ of air. Electrical heating raises the air temperature from $298$ to $410\,\mathrm{K}$. Treat the heater energy as heat supplied across the system boundary and take $c_v=0.718\,\mathrm{kJ/(kg\,K)}$. Determine the boundary work and net heat added.