The cooling of molten urea by air in the tower is called______________________?
Correct answer: A. prilling
- A. prilling
- B. evaporation
- C. condensation
- D. crystallization
Explanation
In a prilling tower, molten urea is sprayed from the top and cooled by an upward air current. The droplets solidify into small spherical particles called prills. Evaporation removes water or volatile material, whereas prilling specifically describes formation of the solid urea granules.
Last updated
About Polymers
Polymers are large molecules made from repeating monomer units joined by covalent bonds. The topic distinguishes addition polymers such as polyethylene, PVC and polystyrene from condensation polymers such as nylon and polyester, and relates chain structure to thermoplastics, thermosetting polymers, elastomers, properties, uses and environmental concerns.
Practise Industrial Chemistry
292 free Industrial Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A polymer in which three different monomers combine called_____________?
A polymer is a large molecule formed by
A thermosetting plastic differs from a thermoplastic in that a thermosetting plastic
_ are product of reaction of an alcohol and aromatic bi-functional acids.
Bakelite is a polymer of Formaldehyde and