BE Chemical Engineering सत्र २ (इंजीनियरिंग) - University of Mumbai Question Bank Solutions for Applied Chemistry 2

Explain structural Composition of plywood.

Define structural composites. 

Explain with suitable equations conventional and green synthesis of carbaryl. Also mention the principle of green chemistry involved. 

Write a note on sandwich panel type layered composites.

Write a note on Green Solvents.

Give Shape Memory Alloys properties and uses.

1.56g of coal sample was kjeldahlished and `NH_3` gas thus evolved was absorbed in 50ml of 0.1N `H_2SO_4`. After absorption to excess (residual) acid requires 6.25ml of 0.1N NaOH for exact neutralisation. Calculate the percentage of N in the coal sample. 

What is supercritical CO₂? Why is it considered a green solvent.  

A sample of coal was found to contain the following constituents. C = 81%, O = 8%, S = 1%, H = 5%, N = 1% and Ash = 4%. Calculate the minimum weight and volume of an required for the complete combustion of 1kg of coal.

Give the composition,propoerties and uses of Duralumin.

What is supercritical CO2?Give one application of it.

Give the composition, properties and uses of high phosphorous bronze.

Define Electrochemical Corrosion. Explain Intergranular Corrosion with a neat diagram.

1.95 gm of coal sample was taken for nitrogen estimation by Kjeldahl’s method. The ammonia liberated required 9.5 ml of 0.4 N H₂SO₄ for neutralization. Calculate the percentage of nitrogen in coal sample.

Explain the determination of % moisture and % volatile matter in a coal sample.

Write a brief note on products obtained from natural materials. 

A coal sample contains C=70%, O=23%, H=5%, N=0.4%, Ash=0.1%. Calculate GCV and NCV of the fuel.

0.5gm of coal sample was burnt in Bomb Calorimeter experiment produced 0.06gm of BaSO₄. Calculate percentage of sulphur.

Gold does not get corroded due to oxidation. Why?

What is compaction in powder metallurgy?