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1. a) How are Polymers classified?
b) Define polymerization. Differentiate addition and condensation polymerization.
2. a) Explain the free radical mechanism of addition polymerization taking ethylene as a monomer.
b) Give the synthesis and applications of Teflon.
3. a)Differentiate between thermoplastics and thermosetting plastics.
b)What is glass transition temperature?Discuss the following factors affecting GTT
i) Flexibility ii) Intermolecular forces.
4. a) Explain the manufacture and applications of the following high polymers:
i)Polymethylmethacrylates (plexi glass) ii) polyurethanes.
b) What are elastomers? Mention the advantages of synthetic rubber over natural rubber.
5. a) What are the deficiencies of natural rubber? What is vulcanization of rubber.
b) Explain the manufacture of Silicone rubber. Mention their applications.
What significance the angle of repose holds in the chemical industry, Explain? Angle of repose is a property of particulate solids. A conical pile is formed when a bulk solid i
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In what manner hot worked and cold worked products differ? Hot working of a metal is carried out above its re-crystallization temperature. In this case the metal is not strain
A) A horizontal tube having a 1.25 cm outside diameter is submerged in a water 1 atm and 100 oC. Determine the heat flux for the surface temperature of (a) 540 o C, (b) 650 o C,
Consider the following non-linear ordinary equation with an initial condition, y(t=0)=2. ?? ′ =4?? 0.8?? -0.5?? Compute and plot the solution as a function of time from 0 to
Your favorite professor likes mountain climbing, so there is always a possibility that the professor may fall into a crevasse in some glacier. If that happened today, and the profe
can you help with process control questions
Permeability: The rate of diffusion of molten solid liquid and gases through refractories is called permeability. Low permeability is usually more important than low porosity from
USES Sensors and devices based on Hall Effect are used for: 1 Analog multiplication 2 Current sensing 3 Position and motion sensing 4 Automotive ignition and fuel in
First find out the requirement of alcohol for your lab in consultation with the teacher or from records of previous years. Then fill-up F-22 form or simply write an application for
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