Question

Can entropy be zero?

Answer 1

Entropy:

1. Entropy is the measure of the disorderliness of a system.
2. It is the amount of energy unavailable to do work.
3. The entropy of a system is given by calculating the difference between entropy at the final state and entropy of the initial state.
4. If there is no difference in the final and initial state of entropy then entropy will be zero.
5. Devices with a steady state of flow of energy like nozzles, and turbines have zero entropy.
6. Reversible processes also have zero entropy.