Suppose the exhaust system on a heat engine is not functioning properly. Which statement best explains how this will affect the engine?

The temperature of the gas will not increase during the compression stage.

Burned gases will not be released into the surrounding air.

The fuel-air mixture will not be able to enter the cylinder.

Combustion and subsequent gas expansion will not occur.

Burned gases will not be released into the surrounding air.

Option 2)

Burned gases will not be released into the surrounding air.

Explanation:

Given that the exhaust system on a heat engine is not functioning properly.

An exhaust system is a system which transfers waste gases and other combustion products away from an automobile engine.

This system is the reason for the vehicle to operate with minimal noise, smoke and pollution transmitted to the environment.

An improperly maintained exhaust system leads to the storage of burned gases inside only because the system is essential to the clean and efficient operation of the car

So option 2 is right.