A combustion chamber is a space where fuel and air mix and ignite to produce energy. This process is essential in various engines, such as those found in cars and airplanes, as well as in power plants. The design of the combustion chamber affects efficiency and performance, influencing how effectively the fuel burns. In internal combustion engines, the combustion chamber is typically located within the cylinder. When the fuel-air mixture is compressed and ignited by a spark from the spark plug, it creates a rapid expansion of gases. This expansion pushes the piston, generating mechanical power to drive the vehicle or machinery.