(Solved): A closed system undergoes a cycle which consists of four processes. The first process is adiabatic, ...

A closed system undergoes a cycle which consists of four processes. The first process is adiabatic, and the internal energy increases by \( 75 \mathrm{~kJ} \). The second process takes place at constant pressure, the internal energy increases by \( 325 \mathrm{~kJ} \), and \( 25 \mathrm{~kJ} \) of work is done by the system on the surroundings. The third process is an adiabatic process, where the internal energy drops by \( 105 \mathrm{~kJ} \). The last process is a constant volume process. For this cycle, complete the following table. Also state whether this is a power cycle or a refrigeration cycle. Use the correct sign convention for work and heat as used in thermodynamics.