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!
Q. Differentiate crystalline and amorphous materials?
(a)Crystalline solids: Those solids in which the, ions atoms or molecules in a definite regular repeated three dimensional pattern are called solids. Thus the atoms or molecules in crystalline solid are arranged just as the sliders do on the parade ground.
e.g.Calcite, rock-salt, quartz, sugar-mica, diamond etc.
(b)Amorphous solids: Those solids in which the constituent atoms or molecules are not arranged in a definite pattern, repeating in three dimensions are called amorphous solid or materials.
e.g.plastic, glass etc.
Crystalline materials
Amorphous materials
(a) The constituent's ions or molecules in a given crystalline solid are arranged in a definite geometrical pattern.
The constituent's atoms or molecules in these solids are not arranged in a regular definite geometrical pattern.
(b) These have a definite external geometrical shape.
These are not regular in their external shape.
(c) These have a long range order of atoms or molecules.
These do not have a long range order of atoms or molecules.
(d) All the bonds among molecules in these solids are equally strong. The crystalline solids have a sharp melting point.
Amorphous solid do not have a sharp melting point, because the weakest bond get reputed at lower temperature and stronger bonds get reputed at higher temperature.
(e) These are anisotropic i.e. the bond of crystalline solids have directional properties.
These solids sre isotropic as their physical properties are same in all direction.
In crystalline solids the angles between the flat surfaces of the crystal are constant.
These are super cooled liquid of high viscosity.
Light-emitting diode: One of the most common light sources used in electronics is the "Light Emitting Diode" (LED). A LED is a two terminal semiconductor device comprising a p
how to find the net profit of given data
I am a chemical engineering foundation year. I need your help with my homework, its 3D sketch by using Google sketchup program?? I have not use it before. Or any other 3D sketch p
Divided entrance duct On a single engine aircraft with fuselage mounted engines, either a wing root inlet or a side scoop inlet may be used. The wing root inlet presents a pro
How to read it
Thermal equilibrium The definition and measurement of temperature must be logically preceded by the concept of thermal equilibrium and the Zeroth law. To determine operationally wh
Torque indication: Turboprop and turboshaft engines do not provide significant thrust through their jet pipes, so EPR would not be of any use in determining the thrust being pr
When should stock rather than debt to fund its operations? There are several reasons for an organization to problem inventory rather than financial obligations. The first is if
#i need help with plumbing/ engineering assignments, from an expert with australian codes, there is any chance,thank you .
how to draw a circuit to determine the parity of a 4-bit binary number?
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd