Download Estimating Heat Capacities for Solutions with Dissolved Solids 1.01

1 Votes
specific heat capacity elements

Combine the heat capacity information from the solution and solids to estimate the solution heat capacity.

What's New in Version 1.01 (See full changelog)

Updated the units on the Metric sheet from "KJ/mol K" to "J/mol K" to correct error.

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untung

Oct 19 2011 09:32 PM

Thanks

gggg

Sep 17 2012 07:36 AM

For the English units tab, it appears that the submitter obtained his equations (as a function of temperature) from Perry's Chemical Engineering Handbook. However, the units in Perry's are in cal/gmol-K. While the submitter did correctly convert deg F to deg K, he did not convert the units from calories to BTU or from gmol to lbmol. Therefore, for the English units table, the user must muliple the answer by 453.6/1055 to convert cal/gmol to BTU/lbmol.

gggg

Sep 17 2012 07:44 AM

Correction to previous review. "To convert from cal/gmol to BTU/lbmol, multiply by 4.184 (J/cal) *453.6(gmol/lbmol)/1055 (BTU/J)".

Chris Haslego

Sep 18 2012 08:14 AM

The error in the workbook was that the metric numbers were presented as "KJ/mole K" where is should have stated "J/mol K". Check some of the values in the spreadsheet with this table as a sampling:

http://hyperphysics.phy-astr.gsu.edu/hbase/tables/sphtt.html