what is the name for the process of heat travelling through gas?

Answer 1

Convection

Answer 2

If you mean literally 'through' then the anwer is radiation.

Convection works by movement of the fluid (liquid or gas), so strictly speaking the heat isn't moving through the gas, so much as energetic (hot) gas is moving through less energetic (cold) gas and so distributing the energy.

'Through' would also imply not just up and down, but side to side, and convection is an upward movement (with a consequential downward flow in a sealed container).

Radiation is the only process that will work independent of direction through a gas.

Answer 3

Convection is the internal movement of currents within fluids (i.e. liquids and gases). It cannot occur in solids due to the particles not being able to flow freely. The most common cause of internal movement is a variation in density due to a transfer of heat. Other sources of density variations, such as variable composition (for example, salinity), or from the application of an external motive force are also often causes. Current movement may be invisibly slow, or it may be as fast as a tornado or twister. Convection occurs in atmospheres, oceans, and planetary mantles.

When a portion of a fluid is heated, its density decreases. The surrounding, denser fluid flows downward due to gravity and displaces the heated fluid upwards. In this way the portion of fluid and the heat it contains are transferred upwards.

One example is that of buoyant convection when water is heated in a pot on a stove. Heat transfer from the bottom of the pan warms the water mass that lies closest to it through heat conduction and thermal radiation. This heated water, being less dense, rises. The cooler water at locations further removed from the heat source falls to the bottom of the pot. While rising, the warmer water transfers some of its heat to the cooler water elsewhere in the pot. Once it cools through this process, the water becomes denser and sinks to the bottom, where it again heats up, continuing the circulation process. Close to freezing, water does not expand when heated by a few degrees. Thus, it does not become less dense and therefore does not rise due to buoyancy. This is an exception to a "warm fluid rises" rule. It also explains how fish survive over winter in "frozen" freshwater lakes where the denser water at the bottom is the warmest in the lake. In this case, relatively warmer water sinks to the bottom due to gravity (rather than rising as described above).

Another example of convection is Thermals.

Most fluids are liquids, gases, and plasmas, although large solid bodies such as Earth's mantle also behave like a fluid on long time scales and at high pressure and temperature. Thermal convection can arise from temperature differences either within the fluid or between the fluid and its boundary, which maintains a gravitationally unstable density gradient if the temperature gradient increases in the direction of gravity.

Convection is one of the three mechanisms of heat transfer, the others being conduction and radiation.

Answer 4

Convection

This is made up of Advection (heat transfer due to the bulk transport of the gas from one place to the other) and diffusion (transport of heat on a molecular level on a similar basis to solid conduction).

In most cases the advective part dominates but under free convection the diffusive part becomes significant particularly in cases wher the geometry and the temperature gradients are restrictive such as the space between panes on a double glazing unit.

Answer 5

In liquids and gases, convection is usually the most efficient way to transfer heat. Convection occurs when warmer areas of a liquid or gas rise to cooler areas in the liquid or gas. As this happens, cooler liquid or gas takes the place of the warmer areas which have risen higher. This cycle results in a continous circulation pattern and heat is transfered to cooler areas. You see convection when you boil water in a pan. The bubbles of water that rise are the hotter parts of the water rising to the cooler area of water at the top of the pan. You have probably heard the expression "Hot air rises and cool air falls to take its place" - this is a description of convection in our atmosphere. Heat energy is transfered by the circulation of the air.

Answer 6

gas is a fluid so its convection 4 sure

Answer 7

It's convection

Answer 8

yep definitely convection

Answer 9

Radiation .
this is the answer.

Answer 10

Usually we call it EXPLOSION.