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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.
a wet gas is produced through a two -stage seperator system. the 555 psia -89degree fahrenheit separator produces 170,516 scf/stb, and the 70 degree farenheith stock tank produces
how 2 construct a loci?
Soft magnetic materials Soft magnetic materials are majorly utilized in those applications in which the soft material has to amplify the flux occured by the electrical current
Pour point: Just as flashpoint when temperature is further lowered below cloud point of certain temperature, oil becomes semi-solid and losses its flow characteristics. This point
For the binary system 2, 4-dimethylpentane (1) + benzene (2) the excess Gibbs energy of the liquid phase is given by: G E /(x 1 x 2 ) = (A 12 x 1 + A 21 x 2 ) a. Calculate t
Drift current is the electric current, or movement of charge carriers, which is because of the applied electric field, often stated as the electromotive force over a given distanc
A sample of water is found to contain , Temporary Mg hardness = 20mg/L,Calcium Sulphate =20 mg/L. Calculate Temporary and Pemanent hardness in water.
Design and Construction : Note the design of the college building. Also observe the quality of construction and the materials (bricks, tiles, stone, cement, mosaic or any other)
A food storage chamber requires a refrigeration system of 15-ton capacity operating at an evaporator temperature of -10° C and a condenser temperature of 30° C. Refrigerant Tetrafl
What is Metallisation Metallisation : metalizing is the procedure of evaporating a film of metal onto products. Normally the same is done in vacuum, therefore called vacuum m
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