Estimate the density change for this fluid upon expansion

Reference no: EM131249450

Problem

a) In the design of a chemical process, the specifications are such that the density and temperature are known for a fluid going through a throttling (expansion) valve. Determine an expression in terms of (T, P, V, C_p, C_v, α, K_T) to calculate the density of the fluid after the expansion given that the temperature is known.

b) Estimate the density change for this fluid upon expansion. This fluid has a density of 7220 mol/m³ and is at 410 K. The temperature of the fluid after the expansion is 290 K. For this fluid, the average value of a between 290 and 410 K is 4.31 x 10^-3 K^-1. The value of KT is 3.49 x 10⁴ bar^-1 at 290 K and 3.71x10^-2 bar-1 at 410 K. The value of Cv is 79 J/mol.K at 290 K and 109 J/mol.K at 410 K.

Reference no: EM131249450

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