Which one is not an adiabatic process?
Correct answer: C. Slow expansion
- A. Escape of air from a burst tire
- B. Cloud formation
- C. Slow expansion
- D. None
Explanation
The correct answer is Slow expansion, as it allows heat transfer with the surroundings due to the extended time over which it occurs. This distinguishes it from adiabatic processes, which are characterized by rapid changes that prevent heat exchange. The other options-Escape of air from a burst tire and Cloud formation-are adiabatic because they happen quickly, minimizing heat transfer. The option None is incorrect because slow expansion is not adiabatic.
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About First Law of Thermodynamics
The first law relates heat supplied, work done and the change in internal energy through energy conservation. Problems use sign conventions and apply the law to isothermal, adiabatic, isobaric and isochoric processes. Internal energy is a state function, while heat and work depend on the path followed.
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