Diffraction by solids, Chemistry

Assignment Help:

DIFFRACTION BY SOLIDS

Diffraction performs when a wave interacts with a lattice whose dimensions are of the same order of magnitude as that of the wavelength of the waves. The lattice scatters the radiation, and the scattered radiation from one point interferes with the radiation from others so as to either reduce it (destructive interference), or enhance the amplitude of the radiation (constructive interference). The pattern of destructive and constructive interference yields information about molecular and crystal structure.

1228_diffraction by solid.png

 

Fig.1. Constructive (a) and destructive (b) interference of two

waves.

In the case of solids, this wavelength must be of the same order as the crystal lattice spacing (ca. 0.1nm), and there are three primary types of radiation which are used for structural studies of solids. The most commonly used radiation, X-rays, have wavelengths of the order of 0.15 nm, and in the course of diffraction studies are scattered by the electron density of the molecule.


Related Discussions:- Diffraction by solids

Calculate the area, 1.      Air is available at 70°F and humidity of 0.001l...

1.      Air is available at 70°F and humidity of 0.001lb/lb.  It is to be treated to yield 130°F and 70% humidity.  Offer a reasonable design. 2.      A mix of granular ceramic

What is the new volume of the gas, 0.47 moles of Sodium were reacted with 2...

0.47 moles of Sodium were reacted with 26g of Copper(II) Nitrate? If the actual yield of copper metal was 1.43g, what is the percentage yield of this reaction? 2. What is the equiv

Types of organic reactions - organic chemistry, Types of organic reactions ...

Types of organic reactions It is suitable to simplify the several reactions of the a variety of classes of organic compound into four types, Substitution reactions,

Give the total order and the partial orders of the reaction, Chemical Kinet...

Chemical Kinetics of the Peroxodisulfate Ion The peroxodisulfate  ion is one of the strongest oxidants that are  called, although the oxidation reaction is relatively slo

Show the chemical property of matter, Q. Show the Chemical property of matt...

Q. Show the Chemical property of matter? A chemical property explains the ability of a substance to combine with or change into one or more other substances. For instance the

Titration help, During a titration with EDTA, using eriochrome black T as i...

During a titration with EDTA, using eriochrome black T as indicator to determine Ca 2+ , an analyst obtained the following volumes of EDTA in three different trials: 5.01, 4.93 an

Decomposition of hydrogen peroxide, how do you convert mL/s to mol/s using ...

how do you convert mL/s to mol/s using the colume of oxygen at satp?

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