도표를 활용한 이상기체 단열 관계식의 유도

초록

In the adiabatic process, the temperature, volume, and pressure of an ideal gas satisfy the adiabatic relations. Most general physics textbooks derive the adiabatic relations by using differential equations derived from the first law of thermodynamics. For physics majors, methods from statistical mechanics are also known. In addition, we show that the adiabatic relations are derived by using diagrams. Deriving the adiabatic relations by using a visual method using diagrams can reduce the mathematical burden and help the adiabatic process be intuitively understood. We calculate the entropy change for the adiabatic process in three diagrams, namely, PV , TV , and TP diagrams, and derive the adiabatic relations through these.

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