Error in neglecting the convection term in evaporation (a) Rework the problem in the text in S18.2
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Error in neglecting the convection term in evaporation
(a) Rework the problem in the text in S18.2 by neglecting the term xA (NA + NB) in Eq. 18.0-1. Show that this leads to this is a useful approximation if A is present only in very low concentrations.
(b) Obtain the result in (a) from Eq. 18.2-14 by making the appropriate approximation.
(c) What error is made in the determination of DAB in Example 18.2-1 if the result in (a) is used?
Transcribed Image Text:
CD AB (XA1 – XA2) (Хд1 Z2 – Z, NAZ Z2
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dx A NA C AB dz Integration of the latter equation twice then gives XA CZ C Then app...View the full answer
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