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∆U=Q-W U2-U1=Q-W Q W

∆U=Q-W U2-U1=Q-W Q W

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Bölüm 2: Termodinamiğin 1. Kanunuc) Sistem ilk durumuna döndüğüne göre:5P = 2.026×10 PaV3oT = 1091.71 K33= 0.0448mİç enerji değişimi:∆U=∆U=32R∆T38.31423×∆ U = −10210. 1 j5P = 1.013×10 PaV( 273 −1091.71)1oT = 273 K11= 0.0224m3Entalpi değişimi:∆H=∆H=52R∆T58.3142×∆ H = −17016. 9 j( 273 −1091.71)Yapılan is:dw = PdV2∫ dw =1V2∫V1PdVW=0.0224−42( .643×10 V 0.6667)∫ 6 + dV0.0448−4−46.643×10 × 10 3W =V + 0. 6667V3W = -0.015 j ( Sistem çevreye iş yapmış)Verilen (veya alınan) ısı enerjisi:dU = dq − dw∆ U= Q −W17

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