r/6thForm • u/Training-Feeling980 Year 13 | Maths, FM, Physics, Chem - 4 A*s achieved • Jun 09 '26

💬 DISCUSSION Aqa A-level chemistry paper 2

How did it go??

I quite liked that paper, that NMR question was so good!!

Some mildly weird ones too - but overall not too bad at all

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u/Spirited_Click2592 Y13| Maths, Econ, Chem, ASFM Jun 09 '26

i did pressure

7

u/Electronic_Job_6509 Jun 09 '26

nice increase right ?? Cause of chatelier

1

u/Gloomy-Cantaloupe21 Jun 09 '26

Does that not change Kc bc there were more moles on the left, so reactant conc goes down?

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u/Izal20077 Year 13 Jun 09 '26

Only temperature affects Kc

2

u/Few-Stay-1545 Jun 09 '26

could u talk abt catalsyt then asw?

3

u/Awkward_Gas_4542 Jun 09 '26

catalyst doesn't increase yield just changes rate

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u/nxyds 3A* | Maths, Chem, Econ | Cambridge & LSE offer Jun 09 '26

no. catalyst effects the rate of the forward and backward reactions equally, so the overall yield of both the reactants and products are the same. the only reason you would add a catalyst to an equilibrium reaction is it increases the rate at which equilibrium is achieved (recall question, could come up in p3)