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AQA GCSE Chemistry Topic 6 - The Rate And Extent Of Chemical Change

 




Below is everything the examiners think you know, if you're not sure of something click on the link to watch my YouTube video explanation. For a copy of these you can print off, get the FREE revision guide I wrote for you. 



• I can calculate the mean rate of a reaction 

 • I can recall ways to measure the quantity of a reactant of product 

 • I can recall the units for measuring rate of reaction 

 • I can give the quantity of a reactant in moles 

 • I can draw a graph to show the progress of a reaction by showing the reactant being used up or a product being formed 

 • I can draw tangents to curves and interpret the slope of these 

 • I can calculate the gradient of a curve from the tangent 

 • I can describe how to investigate the rate of a reaction video 1video 2video 3

 • I can describe and explain how a change in temperature will affect a rate of a reaction 

 • I can describe and explain how a change in pressure will affect a rate of a reaction 

 • I can describe and explain how a change in concentration will affect a rate of a reaction 

 • I can describe and explain how a change in surface area will affect a rate of a reaction video 1video 2

 • I can describe and explain how catalyst will affect a rate of a reaction 

 • I can use collision theory to explain how different factors (temperature/ pressure/ concentration/ surface area) will affect the rate of a reaction 

 • I can describe how a catalyst lowers activation energy 

 • I can draw an energy profile diagram for a catalysed and an uncatalysed reaction 

 • I can use symbols to represent a reversible reaction 

 • I can describe what happens to ammonium chloride upon heating and cooling 

 • I can describe what happens to copper sulfate upon addition and removal of water 

 • I can describe what happens to the energy in a reversible reaction, where one direction is exothermic and the other is endothermic Higher tier only 

 • I can describe what is happening to the rate of reactions when they have reached equilibrium  Higher tier only 

 • I can determine the effects that a change in temperature will have on the system, according to Le Chatelier’s Principle  Higher tier only  

 • I can determine the effects that a change in concentration will have on the system, according to Le Chatelier’s Principle  Higher tier only

 • I can determine the effects that a change in pressure will have on the system, according to Le Chatelier’s Principle  Higher tier only