- #1
bobsmith76
- 336
- 0
Ok, I still don't understand heat. As I see it, heat is the measure of how fast atoms are moving. And energy is also a measure of how fast atoms are moving, but I don't see the difference. Is that right? When an electron moves from an excited state to a ground state I don't see why that should give off heat?
Second, I don't understand how you cause atoms to move faster, if that is the definition of heat. When a hot system moves into contact with a cold system, why does the hot system make the cold system's atoms move faster, the cold system's atoms make the hot system's atoms move slower? Maybe it's because the fast atoms when they move toward the slow atoms their attractive force causes them to move faster and likewise the slow atoms also slow down the fast atoms due to their attractive force but I'm not sure.
Third, when Na and Cl bond, that is supposed to cause heat. I don't see why. I can sort of understand the reverse, that you need to produce heat in order to separate them, because they are tightly bonded, so you need to cause them to move faster so that their probability of finding the "way out" of the bond increases because you increase the probabilistic resources. Maybe the answer, but I'm still not sure, is that when the electrons of the Na come near the Cl, that attractive force forces them to move faster and because they're moving faster, that causes heat, but I still don't know if that's right.
Second, I don't understand how you cause atoms to move faster, if that is the definition of heat. When a hot system moves into contact with a cold system, why does the hot system make the cold system's atoms move faster, the cold system's atoms make the hot system's atoms move slower? Maybe it's because the fast atoms when they move toward the slow atoms their attractive force causes them to move faster and likewise the slow atoms also slow down the fast atoms due to their attractive force but I'm not sure.
Third, when Na and Cl bond, that is supposed to cause heat. I don't see why. I can sort of understand the reverse, that you need to produce heat in order to separate them, because they are tightly bonded, so you need to cause them to move faster so that their probability of finding the "way out" of the bond increases because you increase the probabilistic resources. Maybe the answer, but I'm still not sure, is that when the electrons of the Na come near the Cl, that attractive force forces them to move faster and because they're moving faster, that causes heat, but I still don't know if that's right.