What would happen in the grease fire scenario if a large lid was placed over the container containing the burning grease, but the lid was then removed before all the flames were extinguished or before the grease had cooled to below its autoignition temperature? The flames would continue to diminish, because they would be discouraged by the fact that they were already dwindling. The flames would continue to burn at the rate they were burning just before the lid was removed. We've flattened the chemical reaction rate curve, and so it will stay flat, no matter what we do after that. There is no way, based on principle, to make any reasonable predictions about what would likely happen. With renewed, increased contact between oxygen and the hot fuel, all three constituents of the fire triangle would be present in abundance, and the fire would blaze back up much as before the lid was applied. Which is true about "flattening the curve" in a pandemic? Once mitigation efforts have flattened the curve, it will stay flattened, no matter what is done after that. Limiting contacts between susceptibles and infected can flatten the curve, but the epidemic curve can rise again if mitigation procedures are relaxed too greatly before herd immunity is achieved.
What would happen in the grease fire scenario if a large lid was placed over the container containing the burning grease, but the lid was then removed before all the flames were extinguished or before the grease had cooled to below its autoignition temperature? The flames would continue to diminish, because they would be discouraged by the fact that they were already dwindling. The flames would continue to burn at the rate they were burning just before the lid was removed. We've flattened the chemical reaction rate curve, and so it will stay flat, no matter what we do after that. There is no way, based on principle, to make any reasonable predictions about what would likely happen. With renewed, increased contact between oxygen and the hot fuel, all three constituents of the fire triangle would be present in abundance, and the fire would blaze back up much as before the lid was applied. Which is true about "flattening the curve" in a pandemic? Once mitigation efforts have flattened the curve, it will stay flattened, no matter what is done after that. Limiting contacts between susceptibles and infected can flatten the curve, but the epidemic curve can rise again if mitigation procedures are relaxed too greatly before herd immunity is achieved.
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter9: Energy And Chemistry
Section: Chapter Questions
Problem 9.102PAE: 9.102 A runner generates 418 kJ of energy per kilometer from the cellular oxidation of food. The...
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Transcribed Image Text:What would happen in the grease fire scenario if a large lid was placed over the container
containing the burning grease, but the lid was then removed before all the flames were
extinguished or before the grease had cooled to below its autoignition temperature?
The flames would continue to diminish, because they would be discouraged by the fact
that they were already dwindling.
The flames would continue to burn at the rate they were burning just before the lid was
removed. We've flattened the chemical reaction rate curve, and so it will stay flat, no
matter what we do after that.
There is no way, based on principle, to make any reasonable predictions about what
would likely happen.
With renewed, increased contact between oxygen and the hot fuel, all three constituents
of the fire triangle would be present in abundance, and the fire would blaze back up much
as before the lid was applied.
Which is true about "flattening the curve" in a pandemic?
Once mitigation efforts have flattened the curve, it will stay flattened, no matter what is
done after that.
Limiting contacts between susceptibles and infected can flatten the curve, but the
epidemic curve can rise again if mitigation procedures are relaxed too greatly before herd
immunity is achieved.
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