Ammonia - Prandtl Number vs. Temperature and Pressure

Calculate and analyze the Prandtl Number for Ammonia at varying temperatures and pressures. The Prandtl number (Pr) is a dimensionless number approximating the ratio of momentum diffusivity (kinematic viscosity) to thermal diffusivity, expressed as Pr = μ Cp / k, where μ is absolute viscosity, Cp is specific heat, and k is thermal conductivity.

Temperature (K)	Temperature (°C)	Temperature (°F)	Prandtl Number @ 1 bara	Prandtl Number @ 10 bara	Prandtl Number @ 50 bara	Prandtl Number @ 100 bara
200	-73.2	-8.6	2.67	2.67	2.69	2.72
239.56	-33.6	13.3	1.71	-	-	-
239.56	-33.6	13.3	0.881	-	-	-
298.05	24.9	45.8	-	1.3	-	-
298.05	24.9	45.8	-	1.18	-	-
300	26.9	46.9	0.876	1.16	1.29	1.29
362.03	88.9	81.4	-	-	1.41	-
362.03	88.9	81.4	-	-	1.84	-
398.32	125	102	-	-	-	3.59
398.32	125	102	-	-	-	4.85
400	127	102	0.857	0.894	1.11	3.24
500	227	158	0.835	0.846	0.903	0.998
600	327	214	0.855	0.86	0.883	0.913
700	427	269	0.952	0.955	0.965	0.976