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dW=PdV ·Î Ç¥ÇöÇÕ´Ï´Ù. (Smith 5th Ed. para. 2.8, 2.9)
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dW=d(PV) Ç¥Çö ÇÕ´Ï´Ù. (Smith 5th Ed. para. 2.12)
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G=H-TS
dG=dH-TdS-SdT
=dU+PdV+VdP-TdS-SdT
=dQ+VdP-TdS-SdT
=TdS+VdP-TdS-SdT
=VdP-SdT
À̶§´Â dU+PdV=dQ ¶ó°í ÇÏ´Â °ÍÀ¸·Î ºÁ¼ À§ÀÇ Closed System¿¡¼Ã³·³ »ý°¢ÇÏ°í ÁøÇàÇÑ °ÍÀ̶ó°í »ý°¢µË´Ï´Ù.
±×·³ Flowing SystemÀ̳ª Open System¿¡´Â dG=VdP-SdT °¡ Àû¿ëÀÌ ¾ÈµÈ´Ù°í »ý°¢ÇØ¾ß ÇÒ±î¿ä? ±×·²¸® ¾øÀ»ÅÙµ¥