When energy is conserved or transferred, some energy becomes unavailable to do useful work. What happened to the unavailable energy?
Responses
It is completely destroyed.
It is completely destroyed.
It is conducted.
It is conducted.
It is given off as heat.
It is given off as heat.
It is given off as microwaves.
It is given off as heat.
The unavailable energy is given off as heat.
The correct response is: "It is given off as heat."
When energy is conserved or transferred, some energy is inevitably converted into a form that is not useful to perform work. This is known as "unavailable energy" or "waste energy." This energy is often converted into heat, which is the least organized form of energy and cannot be easily harnessed to do useful work. Heat energy is usually dissipated into the surroundings, increasing the overall entropy or disorder of the system. Therefore, when energy is conserved or transferred, a portion of it is lost as heat and becomes unavailable for further use.