Explain how the convection currents arise as a result of variation in density of liquids and gases with temperature ?
Answers
Answer:
When a liquid is heated at the bottom, the particles at the bottom gain temprature / energy and start moving faster. Due to the, more rapid movement, they occupy more space. We can simply say that fluids expand when they are given heat. So the fluid at the bottom has occupied more volume and in doing so decreased it's density, due to this, it starts moving up(since above the fluid is not at high temprature, and it's density is more), when the fluid moves up, it is replaced by new fluid that is not at the high temprature, this process continues, and there is a convection current developed wherein the liquid at the bottom heats, moves up as a consequence, loses some of it's heat to the neighbouring fluid, moves to the sides of the container, and then moves down to replace the fluid that is now moving up from the bottom. This is the process of convection current.
Answer:
Convection currents generally tend to transport fluid or fuel line particles from one vicinity to another. These are created because of the variations taking place in the densities and temperature of a selected gas or fluid.
Convection currents are associated with density and this is why they may be additionally known as density currents.
- Let’s take an example, whilst boiling the water the new water rises and the cold water acts closer to the downside, that is due to the fact the cold water is denser than the new water and because of this alteration in density convection present day arises.
- A few examples of convection present day are the boiling of water, alternating weather, currents in the ocean, Campfires, and lots more.
and if we talk about gas, the high temp region has a low-temperature region and low density whereas the low temp has a high temperature.
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