Question
Download Solution PDFEntropy change depends on ________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Entropy (S): It is a measure of the disorder of the molecular motion of a system.
- Greater is the disorder, greater is the entropy.
The change in entropy is,
\({\rm{\Delta }}S = \frac{{{\rm{\Delta }}Q}}{T}\)
Where ΔQ = Heat absorbed by the system and T = Absolute temperature
EXPLANATION:
- Absolute entropy (S) or entropy is a measure of energy dispersion in a system.
Following are basic features of entropy:
- Entropy transfer is associated with heat transfer (direction of flow of entropy is the same as that of heat flow). Therefore option 1 is correct.
- Entropy is proportional to mass flow in an open system.
- Entropy does not transfer with work.
- Entropy linked with energy
|
Heat → Work |
Entropy transfers |
|
Work → Work |
No entropy transfer |
|
Work → Heat |
No entropy transfers; Entropy generates |
Last updated on May 28, 2025
-> SSC JE ME Notification 2025 will be released on June 30.
-> The SSC JE Mechanical engineering application form will be available from June 30 to July 21.
-> SSC JE 2025 CBT 1 exam for Mechanical Engineering will be conducted from October 2 to 31.
-> SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.
-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.
-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.
-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.