If we mix hot water and cold water together? what kind of heat transfer will it be? conduction or convection and why?
- Steve4PhysicsLv 76 months ago
It is not a heat-transfer mechanism (not transfer of thermal energy from place A to place B) in the usual sense. So it is neither conduction nor convection.. It is generally simply called mixing.
Another question - what heat transfer mechanism is it when you carry a bucket of hot water from one room to another?
- busterwasmycatLv 76 months ago
Strictly speaking, we would call it convection (the mass would mix because of density differences, although the very act of pouring one into the other would be adequate for the most part). However, all convection actually does involve some conduction in detail. The convection part simply increases the contact area immensely, allowing conduction (transfer of energy by direct contact between particles having different kinetic energies) to occur throughout rather than along some simple plane between two different masses.
- Andrew SmithLv 76 months ago
Convection is the term given when the material containing the heat moves to a new location.
Which is what is happening when we mix the water.
Radiation is a specific form of electromagnetism. That clearly does not apply.
Conduction is where the heat passes from one atom to another along a chain while the original atom loses its heat and remains where it was.
That does not appear to be relevant either.
The only difference between this and "convection currents" is that they are not powered by a thermal gradient alone.
But it is similar to using a fan heater to move hot air. And THAT is also known as a "convection heater".
- D gLv 76 months ago
Convection might depend on how fast it’s poured in