Which Situation Is An Example Of Transferring Heat By Means Of Convection? radiator – A radiator puts warm air out at the top and draws in cooler air at the bottom. steaming cup of hot tea – The steam you see when drinking a cup of hot tea indicates that heat is being transferred into
Does Convection Transfer Heat Or Both Heat And Matter? Heat can travel from one place to another in three ways: Conduction, Convection and Radiation. Both conduction and convection require matter to transfer heat. How is heat transferred through convection? Convection occurs when particles with a lot of heat energy in a liquid or gas move
Why Is Grashof Number Used? The significance of the Grashof number is that it represents the ratio between the buoyancy force due to spatial variation in fluid density (caused by temperature differences) to the restraining force due to the viscosisty of the fluid. Which dimensionless number is used in forced convection? In forced convection the
Why Is Convection Current Important? Convections currents in the earth’s mantle are thought to be the driving force of plate tectonics. Where the hot magma is brought near the surface by the convection currents a divergent boundary is created. The divergent boundaries form new oceans and widen existing oceans. Why is the convection important? This
Why Is Convection Not Possible In Solids? Convection not possible in solids because the particles within are too tightly packed to facilitate the process. Convection requires actual movement between the particles within a substance in order to transfer heat which is only possible in a fluid state of matter such as liquid or gas. Why
Who Is The Scientist Who First Proposed That Thermal Convection In The Mantle Causes Continental Drift? Arthur Holmes: Harnessing the Mechanics of Mantle Convection to the Theory of Continental Drift. Who discovered convection in the mantle? Arthur Holmes (1890-1965) was an English geologist who made two important contributions to the development of geological ideas: the
Why Is Conduction The Most Important Heat Transfer? Conduction is the most significant means of heat transfer within a solid or between solid objects in thermal contact. Conduction is greater in solids because the network of relatively close fixed spatial relationships between atoms helps to transfer energy between them by vibration. Why is conduction the
What Process Drives Mantle Convection? The primary sources of thermal energy for mantle convection are three: (1) internal heating due to the decay of the radioactive isotopes of uranium, thorium, and potassium; (2) the long-term secular cooling of the earth; and (3) heat from the core. What is the process of mantle convection? Mantle convection
Which Best Describes The Shape Of A Convection Current? The shape of a convection current would be circular. Convection currents are caused by the very hot material at the deepest part of the mantle rising, then cooling, sinking again and then heating, rising and repeating the cycle over and over. Which describes convection current? A
Can Convection Occur In Both Liquids And Gases? Convection is the transfer of heat energy through the movement of fluid particles. Hence, convection cannot take place in solids, since the solid particles are not fluid. Thus, convection only takes place in liquids and gases. Can convection take place in liquids and gases? Convection occurs when