y11 chemistry homework

H9 Evaluating chemical
processes
1 (a) £83 799 2
Allow one mark for 235 . 200 + 5257 . 7
(b) (i) £17 007 1
(ii) £340.14 1
(iii) Any two from: transport cost/research and
development/depreciation/import/export
duty/taxes/loans/packaging/advertising. 2
(c) (i) £11 132 1
(ii) £445.28 1
(iii) The unit cost is less when more is made
per day. 1
Total 9
2 (a) A reaction that can change reactants into products
and the products back into the reactants. 1
(b) Correct data selected and plotted (only those at
100 atmospheres) 1
Suitable scale and labelled axes 1
Best-fit curve. 1
(c) Correct data selected and plotted (only those at
150°C) 1
Sensible scale and axes labelled. 1
Best-fit curve. 1
(d) Increases 1
(e) Decreases 1
(f) (i) Increases since there are more energetic
collisions/increases because there are more
collisions per second. 1
(ii) Increases because there are more collisions
per second. 1
Total 11

Y13 Physics phy6 2006

Y13

Markscheme for Synoptic paper here.

http://www.edexcel.org.uk/VirtualContent/48956/GCE_Physics_6736_epen_Exemplar_Markscheme.pdf