00:02
Hello students, in this question we have the first law of thermodynamics.
00:07
First law of thermodynamics and let's take a system.
00:12
This is a system and you are applying heat to this system.
00:16
Right, you are exchanging heat to this system in the form of some form of radiation or something like that.
00:23
So, heat is injected into the system.
00:25
So, what happens is that the system and its inner dynamic changes.
00:30
So, the first law states that the internal energy change that is delta u that is internal energy will be equal to q minus work done.
00:42
So, q is the net heat transfer into the system and w is the work done by the system.
00:49
So, if the system is doing some work by heating up the external temperature or is it expanding.
00:59
If it is expanding then that work will accommodate here...