化学熱力学における熱容量CVおよびCPの導出に関する考察（その２）

タナカ, ユウジ, TANAKA, Yuji

化学熱力学における熱容量CVおよびCPの導出に関する考察（その２）

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タイトル別名

How to Introduce Heat Capacity without Learning Partial Differentials (Part 2)
カガクネツリキガクニオケルネツヨウリョウ C[V]オヨビ C[P]ノドウシュツニカンスルコウサツ(ソノ 2)

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抄録

When deriving the temperature dependence of the enthalpy change (∂H /∂T )P , the temperature dependence of the internal energy (under constant pressure) (∂U /∂T )P is obtained. Compared with the expression for temperature dependence of internal energy (under constant volume) (∂U /∂T )V , both derivatives are equal for a monatomic molecular ideal gas. In this paper, two simple methods are presented to derive the equivalence of internal energy between constant pressure and constant volume.