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Which of the following diagrams show(s) adiabatic compression(s)?

Correct answer: C. III only

  • A. I only
  • B. I and II
  • C. III only
  • D. II and III

Explanation

In an adiabatic process, there is no heat exchange with the surroundings Adiabatic compression is usually depicted as a curve on a PV diagram. The key characteristic of an adiabatic compression is that the process is rapid and involves an increase in pressure without heat entering or leaving the system.On a PV diagram, an adiabatic compression is represented by a curve that is steeper than an isothermal compression. The adiabatic curve slopes more because no heat is added, so the temperature increases more rapidly with decreasing volume compared to an isothermal process.only III represents this

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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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