YaKaleiMunyai2991 YaKaleiMunyai2991 23-04-2024 Physics Answered A vehicle powered by a spark ignition engine follows air standard Otto cycle (gamma = 1.4). The engine generates 70 kW while consuming 10.3 kg/hr of fuel. The calorific value of fuel is 44000 kJ/kg. What is the thermal efficiency of the engine?