Question

1.Lowering the temperature below the flash point:. Single choice.

(1 Point)

causes fire

extinguishes the fire

lowers the density

none of the above​

Answer 1

Answer:

carbon di oxide can low temperature in fire

Answer 2

The correct option is (2) extinguishes the fire. Lowering the temperature below the flash point of a substance can extinguish a fire by removing the heat that is needed for combustion to occur. The flash point is the lowest temperature at which a substance can ignite and sustain combustion in the presence of an ignition source.

Here are some key aspects of how lowering the temperature below the flash point extinguishes a fire:

• Cooling effect: When a substance is cooled below its flash point, the heat required for combustion is removed, and the substance no longer sustains combustion. This is because the rate of heat transfer to the substance is slower than the rate of heat generated by the combustion.

• Removal of fuel: Cooling a substance below its flash point can also cause it to condense or solidify, which can remove the fuel needed for combustion.

• Inerting effect: Lowering the temperature can also create an inerting effect, where the concentration of oxygen in the surrounding atmosphere is reduced, making it difficult for combustion to occur.

Therefore, the correct option is (2) extinguishes the fire.

Overall, lowering the temperature below the flash point is an effective way to extinguish a fire because it removes the heat needed for combustion, removes the fuel needed for combustion, and reduces the concentration of oxygen in the surrounding atmosphere.

It is important to note that different substances have different flash points, so the effectiveness of this method can vary depending on the substance involved in the field.

To learn more about Cooling effect from the given link.

https://brainly.in/question/16363517

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