Technically, the internal kinetic energy is just called "internal energy" or sometimes "thermal energy". The term "heat" tends to be reserved in Physics these days to describe energy that is transferred from a hotter body to a colder one, due to a temperature difference between them. This is distinct from "work", which is a transfer of energy due to the action of forces between bodies. Thus, objects can't be said to "have heat". They "have" thermal energy, or internal energy. They can transfer heat to other things. They can also do work on other things by exerting forces.
Fearing just such a lecture Please Register or Log in to view the hidden image!, that’s what I was trying to convey, by mentioning flow between bodies at different temperatures. It does seem to me , though, rather unsatisfactory for modern usage not to have a concise term for the internal energy due to thermal motion.
It’s Friday the 13th, do you feel superstitious on this day? What does superstition really mean? Definition - to have fear of the unknown or hold a belief that certain things or days or events will bring about bad luck. Superstition has spawned intolerance and probably can be blamed for cults forming and horrific abuses due to groups buying into their specific “brand” of superstition. But just in case, be careful out there today. Please Register or Log in to view the hidden image!
Right. Current thermal power generators cannot convert 100% of input heat into electricity. There is always a good deal of waste heat.
Not just "current" thermal power generators. It applies to any device converting heat to another form of energy, whether now or in the future.
