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.
would you help with Evans diagram( draw and explain) for Iron in seawater,and how variability of Oxygen concentration affect the electrode potential vs.current?
#question.y = lny^2/x^2+Y^2
original temp. of plate is 25 degree c.when put in burnace its upper part is 250 c and lower is 100 and mass is 56kg.find out heat transfer
Artificial Intelligence Artificial Intelligence is a typical science to describe, because it has fuzzy borders with, psychology, computer science, mathematics, philosophy, stat
Q. Explain briefly the Friction welding techniques. OR Discuss any two solid state welding methods.
Adders & Subtractors Adder and Subtractor circuits are used to perform basic calculations in computer systems. Adders, as their name suggests, add binary digits. Since binary
I need help summarizing a technical paper.
how can you access the general purpose registers of Microprocessor in windows XP/2000/98...
Providing alternative escape routes: The first thing to check is if everyone can turn away from the fire and move safely away from it. For this to be the case there will
Lift and drag are merely the resolved components in specific directions of a resultant aerodynamic force caused by the relative velocity V of the vehicle through the air. If al
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