C6.2.3 explain the effects on rates of C6 The rate and 153 reaction of changes in the size of the extent of chemical pieces of a reacting solid in terms of change surface area to volume ratio C6.2.4 describe the characteristics of C6 The rate and 153 catalysts and their effect on rates of extent of chemical reaction change C6.2.5 identify catalysts in reactions C6 The rate and 153 extent of chemical change C6.2.6 explain catalytic action in terms of C6 The rate and 153 activation energy extent of chemical change C6.2.7 suggest practical methods for C6 The rate and 156 determining the rate of a given reaction extent of chemical including: PAG8 change for reactions that produce gases: i. gas syringes or collection over water can be used to measure the volume of gas produced ii. mass change can be followed using a balance measurement of physical factors: iii. colour change iv. formation of a precipitate C6.2.8 interpret rate of reaction graphs C6 The rate and 150 extent of chemical change C6.2.9 interpret graphs of reaction C6 The rate and 150 conditions versus rate (separate extent of chemical science only) change i an understanding of orders of reaction is not required C6.2.10 use arithmetic computation and C6 The rate and 150 Questions ratios when measuring rates of reaction extent of chemical change C6.2.11 draw and interpret appropriate C6 The rate and 150 Questions graphs from data to determine rate of extent of chemical reaction change C6.2.12 determine gradients of graphs as C6 The rate and 150 a measure of rate of change to determine extent of chemical rate change C6.2.13 use proportionality when Not obvious comparing factors affecting rate of reaction C6.2.14 describe the use of enzymes as C6 The rate and 154 catalysts in biological systems and some extent of chemical industrial processes change
C6.2.3 explain the effects on rates of reaction of changes in the size of the pieces of a reacting solid in terms of surface area to volume ratio C6 The rate and extent of chemical change 153 C6.2.4 describe the characteristics of catalysts and their effect on rates of reaction C6 The rate and extent of chemical change 153 C6.2.5 identify catalysts in reactions C6 The rate and extent of chemical change 153 C6.2.6 explain catalytic action in terms of activation energy C6 The rate and extent of chemical change 153 C6.2.7 suggest practical methods for determining the rate of a given reaction including: PAG8 for reactions that produce gases: i. gas syringes or collection over water can be used to measure the volume of gas produced ii. mass change can be followed using a balance measurement of physical factors: iii. colour change iv. formation of a precipitate C6 The rate and extent of chemical change 156 C6.2.8 interpret rate of reaction graphs C6 The rate and extent of chemical change 150 C6.2.9 interpret graphs of reaction conditions versus rate (separate science only) i an understanding of orders of reaction is not required C6 The rate and extent of chemical change 150 C6.2.10 use arithmetic computation and ratios when measuring rates of reaction C6 The rate and extent of chemical change 150 Questions C6.2.11 draw and interpret appropriate graphs from data to determine rate of reaction C6 The rate and extent of chemical change 150 Questions C6.2.12 determine gradients of graphs as a measure of rate of change to determine rate C6 The rate and extent of chemical change 150 C6.2.13 use proportionality when comparing factors affecting rate of reaction Not obvious C6.2.14 describe the use of enzymes as catalysts in biological systems and some industrial processes C6 The rate and extent of chemical change 154
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