![An air standard Otto cycle has thermal efficiency of 0.5 and the mean effective pressure of the cycle is 1000 kPa](https://www.gkseries.com/blog/wp-content/uploads/2023/09/An-air-standard-Otto-cycle-has-thermal-efficiency-of-0.5-and-the-mean-effective-pressure-of-the-cycle-is-1000-kPa.jpg)
Q. An air standard Otto cycle has thermal efficiency of 0.5 and the mean effective pressure of the cycle is 1000 kPa. For air, assume specific heat ratio γ = 1.4 and specific gas constant R = 0.287 kJ/kg·K. If the pressure and temperature at the beginning of the compression stroke are 100 kPa and 300 K, respectively, then the specific net work output of the cycle is_______kJ/kg (round off to two decimal places).
Ans: 708.6 kJ/kg
Sol:
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot_737-transformed.png)
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-736.png)