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.
PROPELLER TORQUE Propeller torque is produced by the aerodynamic drag on the blades when in motion. Propeller torque acts in the plane of rotation and opposes engine torque.
Re-heat Ignition The atomised fuel spray is fed into the re-heat jet pipe and ignited by one of three methods:- • Spark Ignition • Hot Streak Ignition • Catalytic Ignition a
Question 1 What is Artificial Intelligence? Discuss the two class of approaches followed for AI Question 2 Discuss the heuristic search as applied to an AND/OR Graph Ques
how to develop an algorithm that will accept the names of sales staff members and the total sales for the month.the algorithm must calculate the commission of 3% of the total sales
Ten Principles of Engineering Economic Analysis 1. Money has a time value. 2. Make investments that are economically justified. 3. Choose the mutually exclusive investment alt
Analysis of truste,2D truss analysis using method of joint(cantilever & simply support)?
#questiodescribe different types of cro probes
A fund manager’s high growth portfolio is made up of 80% (w1) in shares and 20% (w2 ) in bonds. Over the course of year 2010, the returns from each asset class are expected to have
i want to get circuit diagram
the true length of a line is known to be 500m.the line was again measured with a 20m tape and found to be 502m,what is the correct length of the 20m tape.
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