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.
half wave rectifier
Smoke control system: Where smoke control is installed in a building it is usual for there to also be sprinkler protection to the building and its contents. This is necessary
Principle of Means of Escape: The means of escape with which a building is provided are simply the ways out of the building that can be safely used in the event of a fire. It
Question : (a) The Guide project has been developed to provide city visitors with a hand-held context-aware tourist guide. (i) In this case, what is the meaning of context-a
Chemical Engineering The research about thermoset polymer products. For example Polyimide Film Thermosetting and Pressure-Sensitive Adhesive Tape.
Consider a conical pendulum with a bob of mass m=80kg on a string of length L=10 m that makes an angle of 5 deg. with the vertical. Determine the horizontal and vertical component
The purpose of this project is to design a pipeline and pumping system to dewater a mine. The production level is 500m below surface. Ore is fed through crusher chambers to the tra
Signal modulation Modulation involves the modification of some property of a (usually sinusoidal) carrier waveform. The process of recovering the original signal from the modul
After five years, what is Judy’s total income (interest par) from each bond? Should she use this total as a way of deciding which bond to purchase?
how to calculate the ratio and break-even point in one report
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