Question
Download Solution PDFWhat is entropy?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Entropy: Entropy is a measure of the disorder of a system.
Mathematically entropy is calculated by ΔS:
\(ΔS= {Q \over T}\)
where Q is the heat transferred energy to the system during a process, and T is the temperature in K at which the process takes place.
EXPLANATION:
- Entropy is a measure of the disorder of a system.
- The more disordered a system and the higher the entropy, the less of a system's energy is available to do work.
- Entropy also describes how much energy is not available to do work.
- Theoretically, All forms of energy can be used to do work but practically it is not possible to use the entire available energy for work.
- So all energy transferred by heat can not be converted into work, because some of its part is lost in the form of waste heat.
- Hence the correct answer is option 3.
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