Industrial Processes, Cracking And Polymerisation Flashcards Preview

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Flashcards in Industrial Processes, Cracking And Polymerisation Deck (11)
1

What is cracking?

The process of breaking down long chain alkanes into shorter ones

2

How do you do cracking

1. Heat to 700 degrees
2. Add silica or alumina

3

What is an addition polymer?

A long chain molecule that has been formed by the joining of many monomers

4

What must a monomer contain for addition polymerisation?

A c-c double bond

5

How does a monomer change during addition polymerisation?

The double bond breaks

6

What is a liquid that conducts electricity?

An electrolyte

7

What goes to the cathode when h2so4 is electrolysed?

Hydrogen ions

8

What goes to the anode when h2so4 is electrolysed?

Hydroxide ions

9

How do you calculate the a,punt of coulombs?

Current x time

10

What is an electron mole?

1. Think about a half equations
2. The no. of electrons is the no. of electron moles needed to make one mole of atoms

11

How do you calculate masses in electrolysis?

1. Write out he balanced half equations
2. Calculate the no. of carafes
3. Calculate the no. of moles of atoms produced (divide faraday by no. for electrons in the half equation
4. Write out the molar mass to work out the actual mass (mr x moles)