how does combustion occur in a gas engine of a car

Answer 1

Combustion in a gas engine of a car occurs through a series of steps:

1. Air is drawn into the engine through the intake valve.
2. The air is mixed with fuel in the combustion chamber.
3. The air-fuel mixture is compressed by the piston moving upwards in the cylinder, which increases its temperature and pressure.
4. When the piston reaches the top of its stroke, the spark plug ignites the compressed air-fuel mixture.
5. The ignition of the mixture causes a rapid expansion of gases, pushing the piston back down in the cylinder and generating power.
6. The exhaust valve opens, allowing the burned gases to be expelled from the engine.

This process is repeated many times per minute, driving the movement of the pistons and ultimately turning the crankshaft to power the car.