Quiz: How does an internal combustion engine convert chemical ener August 30, 2025 by Alex Turner How does an internal combustion engine convert chemical energy into mechanical energy? Discover more about Vehicle Engine and Automobile at our home page. A) By igniting fuel and air mixture to create expanding gases that push the pistons. B) By using electric currents to generate magnetic fields that turn the engine. C) By compressing the fuel into a liquid that directly turns the wheels. D) By utilizing solar energy to heat a fluid that drives the engine. Submit Answer