ABSTRACT
The hydration process rate depends on the chemical affinity of the reaction, relative humidity and temperature. To calculate the hydration process rate, the following equation is used:
dΓ dt
A E RT
a = −
⎛ ⎝
⎞ ⎠⎟( )Γ ( )hβ exp (2)
where A(Γ ) = chemical affinity; Ea = hydration activation energy; R = universal gas constant and β(h) is a function of relative humidity (h).
