Carbon Dioxide - Prandtl Number vs. Temperature and Pressure

Prandtl number for carbon dioxide at varying temperatures and pressures. The Prandtl number (Pr) is a dimensionless number approximating the ratio of momentum diffusivity to thermal diffusivity, calculated as Pr = μ Cp / k, where μ is dynamic viscosity, Cp is specific heat, and k is thermal conductivity.

Temperature (K)	Temperature (°C)	Temperature (°F)	Prandtl Number at 1 bara	Prandtl Number at 10 bara	Prandtl Number at 50 bara	Prandtl Number at 100 bara
220	-53.2	-63.8	0.792			2.7
233.03	-40.1	9.7		0.977
240	-33.2	13.6	0.785	0.942		2.32
250	-23.2	19.1	0.781	0.902	2.23	2.16
260	-13.2	24.7	0.777	0.873		2.1
280	6.9	35.8	0.77	0.833		2.06
287.43	14.3	39.9			2.74 (liq)
287.43	14.3	39.9			1.92 (g)
300	26.9	46.9	0.763	0.807		2.39
320	46.9	58	0.756	0.788		4.08
340	66.9	69.1	0.75	0.774		1.53
360	86.9	80.3	0.745	0.764		1.17
400	127	102	0.738	0.749		0.938
450	177	130	0.732	0.739	0.776	0.84
500	227	158	0.728	0.732		0.792
600	327	214	0.725	0.727		0.754
650	377	241	0.725	0.726	0.734	0.745
850	577	352	0.723	0.724	0.726	0.73
1050	777	464	0.721	0.721	0.723	0.724