Homework Help Overview
The discussion revolves around a heat engine operating between two temperature reservoirs, specifically analyzing the net change in entropy during its cycle. The original poster presents calculations involving heat absorbed from the high-temperature reservoir and work done, seeking clarification on the entropy changes associated with the working fluid and the reservoirs.
Discussion Character
- Exploratory, Conceptual clarification, Assumption checking
Approaches and Questions Raised
- Participants discuss the calculations of heat transfer and work done, questioning the implications of these values on the entropy changes of the working fluid and the reservoirs. Some participants express uncertainty about how the cyclic nature of the engine affects entropy.
Discussion Status
The conversation includes attempts to clarify the relationship between the heat engine's operation and the changes in entropy for both the working fluid and the reservoirs. There is acknowledgment of differing interpretations regarding the total entropy change, with some participants suggesting that the original calculations may be correct but lacking in fundamental understanding.
Contextual Notes
Participants are navigating the complexities of thermodynamic principles, particularly regarding the definitions of entropy changes in cyclic processes and the roles of the hot and cold reservoirs. There is a mention of potential confusion surrounding the concept of reversible versus irreversible processes.