?Riedel proposed a third corresponding-states parameter ?c, related to the
Chapter 6, Problem 6.99(choose chapter or problem)
Riedel proposed a third corresponding-states parameter αc, related to the vapor-pressure curve by:
\(α_{c} ≡ [\frac {d ln P^{sat}} {d ln T}]_{T= T_{c}}\)
For simple fluids, experiment shows that \(α_{c} ≈ 5.8\) ; for non-simple fluids, \(α_{c}\) increases with increasing molecular complexity. How well does the Lee/Kesler correlation for \(P_{r}^{sat}\) accommodate these observations?
Text Transcription:
α_c ≡ [d ln P^sat / d ln T]_T= T_c
α_c ≈ 5.8
α_c
P_r^sat
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