?Triple-point coordinates for carbon dioxide are \(T_{t} = 216.55 K\) and \(P_{t} =

Chapter 6, Problem 6.1

(choose chapter or problem)

Triple-point coordinates for carbon dioxide are \(T_{t} = 216.55 K\) and \(P_{t} = 5.170 bar\). Hence, \(CO_{2}\) has no normal boiling point. (Why?) Nevertheless, one can define a hypothetical normal boiling point by extrapolation of the vapor-pressure curve.

(a) Use the Lee/Kesler correlation for \(P_{r}^{sat}\) in conjunction with the triple-point coordinates to estimate ω for \(CO_{2}\). Compare it with the value in Table B.1.

(b) Use the Lee/Kesler correlation to estimate the hypothetical normal boiling point for \(CO_{2}\). Comment on the likely reasonableness of this result.

Text Transcription:

T_t = 216.55 K

P_t = 5.170 bar

CO_2

P_r^sat

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