answersLogoWhite

0

A fire makes things hot. Above a fire, you get quite a lot of hot air. Hot air is less dense than cool

air, so it rises. Because there is quite a lot of hot air, it makes quite a big wind current as it rises,

and that drags the smoke particles upward with the air, in much the same way as wind can raise

dust. Some of the smoke particles are very small indeed, so they can be held up in the air for quite

a long time, and they do not settle out from the air until a long time after they leave the fire, and

usually some distance away from the fire.

In a large bushfire, all the hot air produced makes very strong currents indeed, and not only fine

particles, but also quite large burning twigs and leaves can be carried up in the smoke, and do not

fall out until they have travelled quite some distance. It is these pieces of burning vegetation --

called "embers" -- that often start secondary fires, and make fighting large bushfires extremely

difficult and dangerous.

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

What are the release dates for We Rise Like Smoke - 2013?

We Rise Like Smoke - 2013 was released on: USA: 21 May 2013


How high can smoke from a fire rise?

The height that smoke from a fire can rise depends on various factors, including the size and intensity of the fire, atmospheric conditions, and the surrounding environment. Generally, smoke can rise several hundred to thousands of feet into the atmosphere. In intense fires, such as wildfires or large building fires, smoke may reach altitudes of over 10,000 feet. Additionally, factors like wind can disperse smoke horizontally or vertically, affecting its rise.


Which kind of heat transfer causes smoke to rise from a fire?

Convection is the heat transfer process responsible for causing smoke to rise from a fire. As air near the fire gets heated, it becomes less dense and rises, carrying the smoke along with it.


Why doesn't smoke from a factory rise for ever?

Smoke from a factory doesn't rise indefinitely due to various factors, including gravity, temperature, and atmospheric conditions. As smoke rises, it cools and loses buoyancy, eventually becoming denser than the surrounding air. Additionally, wind and turbulence can disperse the smoke horizontally, causing it to spread and settle rather than continue to rise. Environmental factors, like humidity and air pressure, also influence the behavior of smoke in the atmosphere.


Why does smoke from burning materials rise in the air?

Smoke rises in the air due to the difference in temperature between the smoke and the surrounding air. When materials are burned, the heat causes the air inside the smoke to expand, making it less dense and causing it to rise. This process creates air currents that carry the smoke upwards.


When petrol is set a light is there any smoke?

yes because ever thing may blow up and smoke will rise off the fire


Does cigarette smoke rise or fall in a closed room?

Cigarette smoke rises in a closed room because it is lighter than the surrounding air.


Does smoke from fire rise or raise in the air?

What do meat milk and eggs provide in our diet


Why does smoke from a cigar rise and then settle off?

because it vibrates into the air and becomes oxegin


Does cigarette smoke travel up or down in a closed room?

In a closed room, cigarette smoke tends to rise upwards due to its heat and buoyancy.


What are the release dates for The PJs - 1999 Smoke Gets in Your High-Rise 3-3?

The PJs - 1999 Smoke Gets in Your High-Rise 3-3 was released on: USA: 4 February 2001 USA: 4 February 2001


What actors and actresses appeared in We Rise Like Smoke - 2013?

The cast of We Rise Like Smoke - 2013 includes: Kyler England as herself Richard Furch as himself Kiernan Shipka as Young Kyler Noah Swindle as Young Richard