Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Con?gurational entropy of square lattice models for polymers In this problem, we will consider, several models for a polymer on a 2D square lattice. In particular, we will focus on the con?gurational entropy that arises from the different conformations that a polymer can adopt. (Con?gurational entropy is distinct from translational entropy, which addresses polymer motion through space.) Any lattice polymer model requires that bonded monomers must occupy adjacent sites on the lattice. In class, we considered a 2D Self-AvoidingWalk (SAW) model for a polymer with the ?rst monomer tethered to a wall. The key aspect of the SAW model is that no two monomers may occupy the same lattice site, which provides a simple treatment of excluded volume.
Let us ?rst consider models of a polymer with n =3monomers.
i. The "ideal chain model" of a polymer does not account for excluded volume, but still treats polymer connectivity by requiring that successive monomers occupy adjacent lattice sites. Suppose that we ?xed the position of the ?rst monomer. How many con?gurations are accessible to an ideal chain model with n = 3 monomers. What is the entropy of this model?
ii. Now consider a SAW model for the same polymer. (This is the same model treated in class, except we are not yet considering the wall.) Determine the sample space of con?gurations accessible for this model. How many con?gurations are eliminated as a consequence of excluded volume and how does this change the con?gurational entropy of the polymer?
iii. Now consider a SAWmodel for the same polymer, but with the ?rst monomer bonded to the wall. (This is the model we treated in class.) How many con?gurations have now been eliminated as a consequence of the wall and what is the resulting entropy of this model? What had a bigger effect upon the polymer statistics, the excluded volume of the polymer or of the wall?
Three-center bonding Example of where the 2c bonding picture is not present is in diborane B2H6. The terminal B-H bonds can be defined in simple 2c terms, but the number of
Method for Detection of Elements - Phosphorus Phosphorus is detected through fusing the organic compound along with sodium peroxide while phosphorus is converted into sodium ph
Why alcoholic acidity express in terms of sulphuric acid
write short note on vulcanization?
what is the function of detectors in hplc?
Laws of mass action were proposed by Gulberg and Waage. The rate of chemical reaction is directly proportional to the product of the active masses of the reactants (molar concentra
Which quantum number is not related with Schrodinger equation: (1) Principal (2) Azimuthal (3) Magnetic (4)Spin Ans: Spin
Liquid phase cracking - Hydrocarbon In that type of cracking, the residual oil or heavy oil is cracked at a high temperature that is from 475 to 530 o C under high pressure fro
at what temperature centigrade will the volume of a gas at 0 degrees Celsius double itself pressure remaining constant
Cathode rays have
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd