関連ワード:  polytropic process work done formula    polytropic process work done formula derivation    polytropic process work done equation    polytropic process work formula    work done in polytropic process formula physics    work done in polytropic process formula chemistry    work done in polytropic process formula class 11    work done in polytropic process formula thermodynamics    how to find work in a polytropic process    work done in polytropic process