Question

As a fire within a compartment consumes oxygen, the amount of unburned fuel in combustion products:

a) Increases
b) Decreases
c) Remains constant
d) Fluctuates

Answer 1

In a compartment fire, as oxygen is consumed, the amount of unburned fuel in the combustion products increases due to the limited availability of oxygen.

Step-by-step explanation:

As a fire within a compartment consumes oxygen, the amount of unburned fuel in the combustion products typically increases. This is because the availability of oxygen becomes a limiting factor for the combustion reaction. When there is insufficient oxygen, the combustion reaction does not go to completion, leaving behind unburned fuel along with the combustion products. Once the reactants (fuel or oxygen) are depleted, the fire will spontaneously extinguish.