Problem 29CQ
Consider a system with a certain energy content, from which we wish to extract as much work as possible. Should the system’s entropy be high or low? Is this orderly or disorderly? Structured or uniform? Explain briefly.
Solution 29CQ
Step 1 of 2
Every process carried out is associated with an increase in the entropy and when entropy increases, a certain amount of energy becomes permanently unavailable to do work, since its nature is different.
Hence whenever there is a requirement of obtaining a greater amount of work from a source, the source is always preferred to have lower entropy associated with it.
Such a system enables a greater energy to be available for doing work and a lesser amount to be transferred to unusable entropy rise.