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Is smoke a liquid or a gas?

Smoke is a collection of tiny solid, liquid and gas particles. Although smoke can contain hundreds of different chemicals and fumes, visible smoke is mostly carbon (soot), tar, oils and ash. Smoke occurs when there is incomplete combustion (not enough oxygen to burn the fuel completely).

What is smoke made up of?

Smoke is made up of tiny solid, liquid and gas particles which come together to become visible. This is called propagation. Smoke occurs when there is incomplete combustion, which means there wasn’t enough oxygen to burn the fuel so not everything is burned.

How are smoke particulates categorized based on particle size?

Smoke particulates, like other aerosols, are categorized into three modes based on particle size: nuclei mode, with geometric mean radius between 2.5 and 20 nm, likely forming by condensation of carbon moieties. accumulation mode, ranging between 75 and 250 nm and formed by coagulation of nuclei mode particles

What is visible smoke?

Although smoke can contain hundreds of different chemicals and fumes, visible smoke is mostly carbon (soot), tar, oils and ash. Smoke occurs when there is incomplete combustion (not enough oxygen to burn the fuel completely). In complete combustion, everything is burned, producing just water and carbon dioxide.

What are smoke particles and how do they affect coagulation?

Smoke particles are liquid, consisting of approximately 20% water by volume. The particles vary from less than 0.1 to 1.0-µm diameter. The small size and high concentration promote rapid coagulation, leading to decreased concentration and increased size of the resulting particles within less than a second.

Why is particle size important in tobacco smoke?

Particle size in smoke is important, because it influences where within the respiratory tract a toxicant is deposited. Smaller particles, in general, deposit further down into the lungs. Inhaled particles of the size found in tobacco smoke would be predicted to deposit mainly in the alveolar region of the lung.

What is the composition of smoke?

The composition of smoke depends on the nature of the burning fuel and the conditions of combustion. Fires with high availability of oxygen burn at a high temperature and with a small amount of smoke produced; the particles are mostly composed of ash, or with large temperature differences, of condensed aerosol of water.

What Is Smoke Particles

1. https://en.wikipedia.org/wiki/Smoke
2. https://www.sciencelearn.org.nz/resources/748-what-is-smoke
3. https://cen.acs.org/biological-chemistry/toxicology/Smokes-particle-size-key-health/98/i39
4. https://sertus.uk/blog/what-is-smoke-and-why-is-it-dangerous
5. https://www.thoughtco.com/smoke-chemistry-607309
6. https://energyeducation.ca/encyclopedia/Smoke
7. https://theconversation.com/whats-in-wildfire-smoke-a-toxicologist-explains-the-health-risks-and-which-masks-can-help-164597
8. https://www.scientificamerican.com/article/whats-in-wildfire-smoke-and-why-is-it-so-bad-for-your-lungs/
9. https://www.nature.com/articles/s41467-021-21708-0
10. https://www.sciencenews.org/learning/guide/component/where-theres-smoke-theres-science

Smoke Particles Information

1. https://www.ncbi.nlm.nih.gov/books/NBK222356/
2. https://19january2021snapshot.epa.gov/pm-pollution/how-smoke-fires-can-affect-your-health_.html
3. https://onlinelibrary.wiley.com/doi/10.1002/9781119975465.ch11