At the beginning of the compression process of an air standard Diesel cycle operating with a compression

Question:

At the beginning of the compression process of an air standard Diesel cycle operating with a compression ratio of 10, the temperature is 25oC and the pressure is 100 kPa. The cutoff ratio of the cycle is 2. Determine
(a) The thermal efficiency and
(b) The mean effective pressure. Use the PG model.