Because the binary diffusion coefficient is a constant under constan temperature and pressure, we can get : (2-6-4) t AO

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Because The Binary Diffusion Coefficient Is A Constant Under Constan Temperature And Pressure We Can Get 2 6 4 T Ao 1 (148.32 KiB) Viewed 46 times

Q3-1: What is the approximate partial pressure of component A in
the horizontal section of the nozzle of the diffusion pipe?Why is
that?
Q3-2: What curve is the relation of y/2 to t/y in the formula
(2-6-4) drawn from experimental data points?How to calculate
experimentalvalue DAB?
Because the binary diffusion coefficient is a constant under constan temperature and pressure, we can get : (2-6-4) t AO у 2 DAB P-P - Inc -(Z. - AZ) PART P-PA" y (2-6-4) , y=Z-Zo , Equivalent to the drop height of ... the liquid level, cm (Where Zo is the distance between the liquid level in the pipe and the horizontal section, Zi is the distance between the liquid level and the horizontal section at any time t) ; AZ—End length correction factor, cm. (2-6-4) In-line relationship. Use tly as the abscissa, y/2 is the ordinate, Plot the measured experimental data (Can draw on coordinate paper, It can also be calculated by least squares regression on the computer) Find the slope C, . P P AB C = D · P р А RT In( 40 0 A P P • Obtain the gas diffusion coefficient Das from the slope C AB -1 D AB = C PART In( P - P AO 40 -) P - PA P (2-6-6) • equation (2-6-4) And equation (2-6-6) It is the main calculation formula of this test method.