The Best Logique Evidence of God Existence

[polymath257]

No, you cannot just add energy to a system. To add energy, you have to apply a force. In other words, you have to interact with the system by some other system. Interactio between particles can, and does, change the dynamic properties of the particles involved. This includes energy and momentum, for example.

Energy is a property of the particles, not something that can be separated from them. Energy doesn't exist as a 'thing in itself', but solely as a property of such things: quantum particles.

---

So if one heats up a closed system, what is the "force", and what are the particles involved.

If you are heating up a system, it is not closed.

But if, for example, you are heating up a pot of water, the molecules in the flame are colliding with the atoms/molecules pan, making them move faster (more kinetic energy--> hotter). Those, in turn, collide with the molecules of the water, making them move faster. The force is that of the collision between the molecules or atoms involved, which ultimately comes down to the electromagnetic force together with some quantum effects of the electrons, which are fermions and thereby don't like to be in the same location at the same time.

The flame is actually a chemical reaction, which again is ultimately a matter of the electromagnetic force, mostly between the electrons of the different atoms rearranging in the reaction.