In an Otto cycle the compression ratio is 9 ∶ 1 and the pressure and temperature at the beginning of the compression process are 100 kPa and 10°C. The heat addition by combustion gives the highest temperature as 2500 K. Specific heat added by combustion is -
1
1.303 MJ/kg
2
1.048 MJ/kg
3
0.286 MJ/kg
4
0.762 MJ/kg