Explain how can the nanometer length scale affect the system structure and surface area by calculating the variation of the (surface area to volume ratio) for a 5-micometer long fiber (cylindrical shape) if the particle diameter changes gradually from 1 nm to 100 nm (i.e. 1, 10, 20, 30, .. , 100) and plot the variation of surface area to volume ratio versus particle diameter.

Explain how can the nanometer length scale affect the system structure and surface area by calculating the variation of the (surface area to volume ratio) for a 5-micometer long fiber (cylindrical shape) if the particle diameter changes gradually from 1 nm to 100 nm (i.e. 1, 10, 20, 30, .. , 100) and plot the variation of surface area to volume ratio versus particle diameter.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter26: An Introduction To Chromatographic Separations

Section: Chapter Questions

Problem 26.1QAP

See similar textbooks

Similar questions

What effect will the following have on plate height (H). Make sure to explain your full and complete reasoning. Increasing stationary phase thickness. Reducing the rate of sample injection. Increasing mobile phase flow rate. Decreasing temperature. Reducing stationary phase particle size.
In the following figure, which parameter of van Deemter equation is involved in these variations. Which curve of them would provide the best separation of analytes and at what linear velocity?
Sketch a graph of the van Deemter equation (plate height versus flow rate). What would the curve look like if the multiple path term were 0? If longitudinal diffusion were 0? If the finite equilibration time were 0?
If the radius of column 0.25 cm, the linear.3 velocity of mobile phase 10.0 cm/min, and the fraction of the column accessible to the mobile phase 0.50, then the flow rate of the mobile phase ??
Differentiate between preformed and self-forming density gradients in respect of the following: I. Type of gradient material used. II. The mode of gradient formation.
What other method besides conductivity can be used to determine CMC (critical micelle concentration)?
Why does the %T on the spectrophotmete keep going up and down? It won't give an exact measurement.
Describe the mechanisms of strength at the peak hardness of a precipitation hardened alloy when both coherent, semi-coherent, and incoherent particles may be present in different volume fractions. Do not hesitate to use as many equations, and figures as needed.
Substances A and B with capacity factors 6.3 and 11.4, respectively, are being carried by a mobile phaseflowing at a velocity of 0.53 mm/s. What is the length of a column required to separate these two substanceswith a resolution of 1? Assume that the sample zones for both A and B broaden based on the van Deemter equation H = 0.35 + 0.48/u+ 0.57u where Hand u are expressed in µm and mm/s, respectively.
What do you understand by Isocratic and Gradient elution?
When the distribution coefficient increases, the extraction efficiency increases or decreases
Find the weighted adjacency matrix of the following direted graph and represent that as a CSR-marix.