Second Law Of Thermodynamics
According to the second law of thermodynamics, in an isolated system:
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About This Question
- Subject
- chemistry
- Chapter
- chemical thermodynamics
- Topic
- second law of thermodynamics
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Entropy always increases
The Second Law of Thermodynamics states that the total entropy of an isolated system (which does not exchange matter or energy with surroundings) can never decrease over time.
- For a spontaneous process in an isolated system, the change in entropy is always positive: ΔSsys>0.
- The system will evolve towards a state of maximum entropy, which corresponds to thermodynamic equilibrium.
- ΔSuniverse=ΔSsys+ΔSsurr≥0.
This easy difficulty chemistry question is from the chapter chemical thermodynamics, covering the topic of second law of thermodynamics. It appeared in the 2025 exam.
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