|MadSci Network: Physics|
I am struggling with the second law of thermodynamics, and its application. I understand that there are many ways to convert energy from one form to another which do not violate the first law of thermodynamics but which do violate the second law. I imagined a projectile in a vacuum, moving at high velocity. It would have a large kinetic energy, all "concentrated" in the projectile. All that kinetic energy could be converted into heat. Obviously this would happen in the case of a collision, or if the projectile entered an atmosphere of some sort. But why can it NOT happen spontaneously? Where in the second law is there a requirement of "agency" to cause an energy conversion? Thank you.
Re: How does kinetic energy changing directly to heat violate 2ndLaw?
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