An ideal Otto cycle has a compression ratio of 7. At the beginning of the compression process, P₁ = 90 kPa, T1 = 27°C, and V₁ = 0.004 m³. The maximum cycle temperature is 1127°C. For each repetition of the cycle, calculate the heat rejection and the net work production. Also calculate the thermal efficiency and mean effective pressure for this cycle. Use constant specific heats at room temperature.