A Carnot cycle running on a closed system has 1 kg of air and executes 20 cycles

Question:

A Carnot cycle running on a closed system has 1 kg of air and executes 20 cycles every second. The temperature limits are 300 K and 1000 K, and the pressure limits are 20 kPa and 1900 kPa. Atmospheric conditions are 100 kPa and 300 K. Using the PG model for air, perform a complete energy inventory and draw an energy flow diagram for the cycle on a rate (kW) basis.
What is the energetic efficiency of the Carnot engine?