Availability of a system at any given state is ______
A. A property of the system
B. The maximum work obtainable as the system goes to a dead state
C. The total energy of the system
D. The maximum useful work is obtainable as the system goes to a dead state
Answer: The correct option is D.
The availability is nothing but the maximum useful work is obtainable as the system goes to a dead state.
There can be confusion between options B and D so be careful.