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 |
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Energy (enthalpy) changes during chemical reactions Enthalpy calculations given ΔH of two related reactions
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Past exam questions on thermochemistry 2014 VCE Past exam questions on rates of reaction 2014 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 |
Equilibrium 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 Past exam question on acid/base equilibria 2014 VCE |
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Nitric acid production |
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| 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. |
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• 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. |
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Quiz 1 Solutions Electrochemical cells |
2014 VCE 2013 VCE 2012 VCE 2011 VCE 2010 VCE 2010 HSC 2009 VCE 2009 HSC 2008 VCE 2006 VCE 2005 VCE |
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Electrolytic cells |
2014 VCE 2013 VCE 2012 VCE 2011 VCE 2009 VCE 2009 HSC 2008 VCE 2006 VCE 2005 VCE |
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| 2014 VCE 2013 VCE 2012 VCE 2011 VCE 2009 VCE 2008 VCE 2006 VCE 2005 VCE |
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Experimental technique |
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| Revision task 1 Solutions | |||
| Revision task 2 Solutions | |||
| Revision task 3 Solutions | |||