Equilibrium equation derivation, Chemistry

Assignment Help:
My problem is how should the specific equation be derived using boundary condition. I have the final equation (which is based on Langmuir isotherm) and I know the boundary condition as well so I just need to know how should I reach to the final equation using boundary condition? step by step.
The model is on the assumptions that (i) in a As–HA binary system, sorbent binding sites form complexes represented as SA when arsenic binding occurs and complexes denoted SH when HA is bound and (ii) equilibrium can be expressed as S+A ? SA, where K1 = [SA]/[S][A], S + H ? SH, where K2 =[SH]/[S][H] and A+H ? AH where K3=[AH]/[A][H]. In this model, considering an interactions resulting in SAH complexes, the equilibrium can be expressed as SA+H ? SAH, where K1,2=[SAH]/[SA][H], SH+A ? SHA, where K2,1=[SHA]/[SH][A] and S+AH ? SAH where K3,3=[SAH]/[S][AH]. Then one can assume S+A+H ? SAH and S+H+A ? SHA, where K=K1K1,2 = K2K2,1= K3K3,3. Assuming that the sorption system is in equilibrium (there are no net changes of [SA], [SH] and [SAH] with respect to time), the following can be written: d[SA]/dt = 0 , d[SH]/dt=0 and d[SAH]/dt=0 and [S0]=[S]+[SA]+[SH]+[SAH]
In such case, the model can be presented to the form:
qAs=(qmax Ce [As]{1+(K1/K )Ce [HA] })/({K1+Ce [As]+(K1/K2 ) Ce [HA]+2(K1/K) Ce [As] Ce [HA]})
So I need to know how I should reach to the above final equation using the mentioned assumptions?

Related Discussions:- Equilibrium equation derivation

The value of azimuthal quantum number, When the value of azimuthal quantum ...

When the value of azimuthal quantum number is 3, magnetic quantum number can have values: (1) + 1, 0, - 1           (2) + 2, + 1, 0, - 1, - 2  (3) - 3, - 2, - 1, - 0, + 1

Resonance effect.., what is resonance effect? describe its application and ...

what is resonance effect? describe its application and its types?

Chemical Equilibrium, why is the reaction mixture does not have 50% reactan...

why is the reaction mixture does not have 50% reactants and 50% products?

Classification of organic compounds, Q. Classification of Organic Compounds...

Q. Classification of Organic Compounds?Groups of Organic Compounds? Ans. Organic compounds are classified on the basis of their functional groups. The common groups of org

What is spontaneous processes?, Q. What is Spontaneous processes? Ans. ...

Q. What is Spontaneous processes? Ans. Spontaneous processes are events which occur without any assistance. When an object is held above the floor, it falls when released. Ic

Alkali metals - non-transition metals, Group 1- Alkali Metals The elemen...

Group 1- Alkali Metals The elements of group 1 are commonly known as alkali metals after the alkaline properties of their hydroxides such as NaOH. The atoms have the (ns) 1 e

Stvx, Give the styx code of b4h10 and which type of bond present in it?

Give the styx code of b4h10 and which type of bond present in it?

Explain objectives of product development and evaluation, Explain Objective...

Explain Objectives of Product development and evaluationexplain why is it necessary to develop new products describe what are the factors responsible for development of

Versatile nature of carbon-catenation, Versatile nature of Carbon-Catenatio...

Versatile nature of Carbon-Catenation The chemical compounds can be mainly classified into two main categories. These are organic and inorganic. More than 90 elements are in

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd