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Convection occurs in the troposphere but not in the stratosphere because?
Because of the temperature in the troposphere that decreases as the altitude also lowers, convection only happens on it and not in the stratosphere. Also, because of the warm air from the land that is rising to the troposphere it becomes denser than the air above it that makes convection only happen in the said layer.
What factor free covection heat flow depends?
The only factor that free convection heat flow depends on is the conductivity of the material. Heat moves toward a cold area and heat it up and the reverse is true for cold, it will cool down something warm.
Do tornadoes form with variations of temperature?
Variations in temperature often play a role in the formation of tornadoes, but they are not the only factor.
Does convection occur in the core of a star?
No, Convection does not occur in the Core. For example, in the Sun, the convection occurs only after the Radiation zone. In the radiation zone the energy is transported by radiation (ie, by photons). At about 0.8 solar radius the density and temperature are not enough to transport the energy by radiation, so convection sets in.
Why are IDE drives often referred to as disposable drives?
IDE drives only last for a linited number of years
What is necessary to create a convection current?
Simple Answer:Heat transfer by convection requires a fluid, heat source and gravity. Natural heat transfer by convection requires there to be a heat source causing nonuniform temperature in the fluid so that buoyancy of the warmer fluid causes it to rise.Explanation:When we say heat is transferred by convection, we mean the thermal energy (heat) is actually carried by the material to distinguish from heat conduction through a material.Convection requires the presence of matter that can move, e.g. liquid or gases exhibit convective heat flow but solids do not.Normally, convection is driven by buoyancy, so one also needs to have the liquid (or gas) change density with temperature.Aside: Convection is why we say "heat rises." And, an interesting side observation is that when water cools near the freezing point, it actually gets lighter as the temperature drops from 4 C to 0 C, hence causing the cooler water in that range to be less dense and more buoyant.Aside: There is also something called forced convection where fluid is moved by artificial means such as air pushed by a fan. Most home heating occurs with "forced convection" but years ago natural convection resulting from buoyancy of hat air was the cause for air circulation.
What is heat transfer by convection possible only in liquids and gases?
Because convection occurs by convection currents. Convection currents occur as a result of the movement of a body. Since solids cant move, convection only occurs in fluid, i.e., liquids and gases
Can aluminum tray used for convection?
yes but only in convection mode setting..NOT to be used in microwave setting
What is a good sentence with the word 'convection' in it?
Convection is only one of the three types of heat.Can't we use the convection oven?
What type of heat transfer occurs in only liquid and gases?
Convection is the type of heat transfer that occurs in only liquids and gases. It involves the transfer of heat through the movement of the fluid molecules due to differences in their density and temperature.
When liquid lemonade is placed in a freezer temperature slowly drives its molecules move less and less until they can only vibrate in a rage structure which is another way to describe this process?
No
What does the command scandisk do?
Scandisc only works on hard disks and floppies, not on tape drives, CD-ROM drives, or DVD-ROM drives.
