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View Full Version : How to calculate heat of absorption using Gibbs-Helmholtz equation?


piateczka
Mar 21, 2010, 01:59 PM
Dear All,

How to calculate the heat of absorption by use of the following form of the Gibbs-Helmholtz equation:

∆Hs/R = [∂ lnp /∂ (1/T)]x

where: x - mole fraction of CO2 in the liquid phase
p - CO2 partial pressure (kPa)
T - temperature (K)
R - universal gas constant
alpha - mole ratio in the liquid phase (mole CO2 per mole of amine)

What would be a "step-by-step" calculation procedure?

Thank you,
piateczka

InfoJunkie4Life
Mar 23, 2010, 09:23 AM
Gibbs?Helmholtz equation - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Gibbs–Helmholtz_equation)