23. Heat engines device that converts thermal energy into mechanical work it is characterized of the existence of two temperatures of one cycle it is neated at another s cooled. One example of a heat engine is the gasoline engine it is composed of a four-stroke cycle: the Intake, compression, power and exhaust strokes. How will you describe the piston and gases in the exhaust sto A. The piston moves up allowing combusted goses to more up as well. B. The piston moves up and the gases are expelled in the open yalve C. The piston moves up while the gases move down. D. The piston and the gases move up