Timeline VCE

Chemistry Unit 4
2015-2016

AREA OF STUDY 1

Industrial chemistry
This area of study focuses on the factors that affect the rate and extent of a chemical reaction. Students study energy profiles and how the equilibrium law is applied to homogeneous equilibria. They conduct experiments to investigate the effect of temperature, concentration of reagents, pressure and catalysts on the position of equilibrium of a reaction, and apply Le Chatelier's Principle to explain their results.
Students explore how factors affecting rate and equilibrium are applied to achieve the optimum reaction conditions in the industrial production of chemicals. One chemical selected from ammonia, sulfuric acid or nitric acid is studied in detail.
Week
key knowledge
Topics and Lessons

Resources/Activities

(activities listed in no particular order)

1-2


• collision theory and factors that affect the rate of a reaction including temperature, pressure, concentration and use of catalysts, excluding: a formal treatment of the Maxwell-Boltzmann distribution, reaction mechanisms and rate laws
• energy profile diagrams and the use of ΔH notation including: activation energy; alternative reaction pathways for catalysed reactions; and deduction of ΔH for an overall reaction given energy profiles or ΔH of two related reactions

Energy (enthalpy) changes during chemical reactions

Activation energy

Rate of reaction

Catalysts

Energy profiles

- endothermic reactions

- exothermic reactions

Enthalpy calculations given ΔH of two related reactions

Calculating energy release

Quiz 1 Solutions

Quiz 2 Solutions

Quiz 3 Solutions

Quiz 4 Solutions

Quiz 5 Solutions

Quiz 6 Solutions

Quiz 7 Solutions

Quiz 8 Solutions

 

 

Past exam questions on thermochemistry

2014 VCE
2013 VCE
2012
VCE
2011
VCE
2010
VCE
2010
HSC
2009
VCE
2009
HSC
2008
VCE
2007
VCE
2006
VCE
2005 VCE

Past exam questions on rates of reaction

2014 VCE
2013 VCE
2012
VCE
2010
VCE
2009
VCE
2008
VCE
2007
VCE

 

Chemical equilibrium

 

• equilibrium: representation of reversible and non-reversible reactions: homogeneous equilibria and the equilibrium law (equilibrium expressions restricted to use of concentrations), Le Chatelier's Principle and factors which affect the position of equilibrium
• pH as a measure of strength of acids and bases; Kw, Ka for weak acids
• application of equilibrium and rate principles to the industrial production of one of:
ammonia,
sulfuric acid,
nitric acid:
– factors affecting the production of the selected chemical
– waste management including generation, treatment and reduction
– health and safety considerations
– uses of the selected chemical.

Equilibrium
Le Chatelier's
-Summary of Le Chatelier's
Quiz 1 Solutions

Quiz 2 Solutions

Quiz 3 Solutions

Quiz 4 Solutions

Quiz 5 Solutions

Quiz 6 Solutions

Quiz 7 Solutions

Quiz 8 Solutions

Quiz 9 Solutions

Rates
Quiz 1 Solutions

Quiz 2 Solutions

Quiz 4 Solutions (rates and enthalpy)

Quiz 5 Solutions (rates and enthalpy)

Quiz 6 Solutions (rates and enthalpy)

Quiz 7 Solution (rates, equilibrium and enthalpy)

Past exam question on chemical equilibria

2014 VCE
2013 VCE
2012 VCE
2011
VCE
2010
VCE
2010
HSC
2009
VCE
2009 HSC
2008
VCE
2007
VCE
2006
VCE
2005
VCE

Past exam question on acid/base equilibria

2014 VCE
2013 VCE
2012
VCE
2011
VCE
2010
VCE
2009
VCE
2009
HSC
2008
VCE
2007
VCE

Kw

Ka

Weak acid

pH

Quiz 1 Solutions

Quiz 2 Solutions

Sulfuric acid production

Ammonia production

Nitric acid production

  AREA OF STUDY 2
Supplying and using energy
This area of study focuses on use of different energy resources. Students evaluate the extent of the reserves of some of these resources, how each resource is used and the advantages and disadvantages of their continued use. Students conduct experiments using calorimeters to measure the energy of chemical reactions. The electrochemical series is a useful tool in the prediction of redox reactions in aqueous solution. Students construct and operate simple galvanic and electrolytic cells and use the electrochemical series
to predict and explain their results. They extend their study of stoichiometry with the application of Faraday's laws to solve problems involving quantitative calculations for electrolysis reactions. Students are not expected to know structural details and components of specific galvanic cells, fuel cells, electrolytic cells or batteries, or the industrial applications of electrolytic cells.
 
• comparison of the renewability of energy sources including coal, petroleum, natural gas, nuclear fuels and biochemical fuels
• application of calorimetry to measure energy changes in chemical reactions in solution calorimetry and bomb calorimetry, including calibration of a calorimeter and the effects of heat loss
• use of the electrochemical series in predicting the products of redox reactions and deducing overall equations from redox half equations
• limitations of predictions made using the electrochemical series, including the determination of maximum cell voltage under standard conditions
• the chemical principles, half-equations and overall equations of simple primary and secondary galvanic cells
• the chemical principles, half-equations and overall equations of fuel cells; advantages and disadvantages of fuel cells compared to conventional energy sources
• the chemical principles, half-equations and overall equations of simple electrolytic cells; comparison of electrolytic cells using molten and aqueous electrolytes, and inert and non-inert electrodes
• application of Faraday's laws in electrochemistry.

Calorimetry

Quiz 1 Solutions

Quiz 2 Solutions

Quiz 3 Solutions

Quiz 4 Solutions

Quiz 5 Solutions

Bio-fuels

Quiz 1 Solutions

 

Galvanic cells

Quiz 1 Solutions

Quiz 2 Solutions

Quiz 3 Solutions

Quiz 4 Solutions

Electrochemical cells
--- salt bridge
--- half equations
--- overall equations
--- potential difference
--- recharging secondary cells
--- using the electrochemical series

2014 VCE
2013 VCE
2012
VCE
2011
VCE
2010 VCE
2010 HSC
2009 VCE
2009
HSC
2008
VCE
2006 VCE
2005 VCE

Electrolytic cells
--- Faraday's Law

Quiz 1 Solutions

Quiz 2 Solutions

Quiz 3 Solutions

Quiz 4 Solutions

Quiz 5 Solutions

Quiz 6 Solutions

Quiz 7 Solutions

Quiz 8 Solutions

Quiz 9 Solutions

Quiz 10 Solutions

Quiz 11 Solutions

Electrolysis in solution

2014 VCE
2013
VCE
2012
VCE
2011
VCE
2009
VCE
2009
HSC
2008
VCE
2006 VCE
2005
VCE

Fuel cells

Quiz 1 Solutions

Quiz 2 Solutions

Quiz 3 Solutions

Quiz 4 Solutions

Quiz 5 Solutions

2014 VCE
2013
VCE
2012
VCE
2011
VCE
2009
VCE
2008
VCE
2006
VCE
2005
VCE
   

Experimental technique

Quiz 1 Solutions

 
   

Ammonia
Quiz 1 Solutions

Quiz 2 Solutions

Quiz 3 Solutions

Quiz 4 Solutions

Quiz 5 Solutions

Quiz 6 Solutions

 
    Revision task 1 Solutions  
    Revision task 2 Solutions  
    Revision task 3 Solutions