Final answer:
Exergy is a thermodynamic property that measures the maximum useful work that can be extracted from a system. The dead state refers to the state of a system when it is in thermal and mechanical equilibrium with its surroundings. The exergy of kinetic energy, potential energy, and thermal reservoir energy is zero, as they are not properties of the system itself.
Step-by-step explanation:
Exergy is a thermodynamic property that measures the maximum useful work that can be extracted from a system as it comes into equilibrium with its surroundings. It represents the potential of a system to do work. The dead state refers to the state of a system when it is in thermal and mechanical equilibrium with its surroundings.
The exergy of kinetic energy is zero because it is not a property of a system, but rather a property of the motion of objects. The exergy of potential energy is also zero because it is associated with the position of objects, rather than the system itself. The exergy of thermal reservoir energy is the maximum work that can be extracted from the reservoir when it is brought into equilibrium with the system.