A combustion chamber is a space within an engine where fuel and air mix and ignite to produce energy. This process is essential for powering various types of engines, including those in cars and airplanes. The design of the combustion chamber affects the efficiency and performance of the engine. In many engines, such as those in internal combustion engines, the combustion chamber is shaped to optimize the burning of fuel. The heat generated from the combustion creates pressure that drives the engine's pistons, ultimately converting chemical energy into mechanical energy for movement.