## Description

__Question __

__Question__

An air-standard Otto cycle has a compression ratio of 7.0. At the beginning of the compression p_{1} = 85 kPa, T_{1} = 52°C. The maximum temperature in the cycle is 1080 K.

(a) Draw T-s diagram for the cycle

(b) State the Engineering model and assumptions

(c) Calculate the net-work done, in kJ/kg

(d) Calculate the mean effective pressure, in kPa

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