00:02
Hello, in the question we have given the energy being carried upward in the smoke above campfire is doing so by which heat transfer mechanism? so, the first one is the energy.
00:15
So, i will be just writing whether it is which mode of heat transfer it is.
00:19
So, the answer for this is convection.
00:24
So, the reason is that now there are three modes of heat transfer.
00:30
One is convection, another is conduction and third one is radiation.
00:34
So, convection means it occurs the heat transfer is in the fluids.
00:39
So, over here the energy is carried upward in the smoke above the campfire.
00:45
So, the layers the air in the atmosphere gets heated and that is why the mode of heat transfer over here is convection.
00:55
Next is after you extinguish a campfire for night, you decide to reach out to separate logs.
01:05
When you touch the log, it immediately burns you.
01:08
So, burning so it is conduction because we are touching it.
01:14
So, a touch is there.
01:16
So, there is some contact.
01:18
So, if there is some contact then with the heat then this phenomena is conduction...