Production Of Materials

Question 0

Define:

Steam Thermal Cracking

Answer 0

The process by which ethane gas or larger hydrocarbons are mixed with steam and passed through large metal coils, producing ethylene.

Question 1

Define:

Catalytic Cracking

Answer 1

The process in which high molecular weight fractions from crude oil are broken into lower molecular weight substances in the presence of high temperatures and a catalyst

Question 2

Which alkene is a major by-product of catalytic cracking?

Answer 2

Ethylene

Question 3

What property makes alkenes more reactive than their corresponding alkanes?

Answer 3

The double bond.

Question 4

Define:

Addition reaction

Answer 4

A reaction in which two or more molecules are reacted together to form a single molecule, without loss of atoms.

Question 5

Product: Ethanol
Reactants?
Conditions?
Uses?

Answer 5

Reactants - ethylene and water
Conditions - high temp (300 C), high pressure (60-70 atm), sulfuric acid catalyst.
Uses - fuel, solvent, cleaning and disinfecting fluid

Question 6

Why is ethanol a good solvent?

Answer 6

It has a polar end, and a non-polar end. Meaning it can dissolve most of both polar and non-polar molecules.